sr. no. chapter no. of mcqs percentage

NEE-2021 Paper Analysis

Prof.Motegaonkar S.R. M.Sc.Chem.Gold Medalist SET/NET-JRF,GATE, DRDO,TIFR qualified 1

RCC STUDY MATERIAL QUESTIONNEET - 2021 PAPER QUESTION RCC TOPIC STUDYWITH P. NO.NEET 2021 PAPER ANALYSIS - [N4 SET]

Sr. No. Chapter No. Of MCQs Percentage1 Mole Concept 1 2

2 Structure of Atom 1 2

3 Periodic Table 1 2

4 Chemical Bonding and Molecular structure 3 6

5 The States of Matter : Gases and Liquids 2 4

6 Thermodynamics 2 4

7 Equilibrium 1 2

8 Redox Reaction 1 2

9 Hydrogen 1 2

10 S-block elements 2 4

11 Some p-block elements - Group 13, 14 0 0

12 GOC 3 6

13 Hydrocarbons 2 4

14 Environmental Chemistry 1 2

15 Solid State 2 4

16 Solution 2 4

17 Electrochemistry 2 4

18 Chemical Kinetics 2 4

19 Surface Chemistry 1 2

20 Metallurgy 2 4

21 p-Block Elements - Group 15, 16, 17, 18 3 6

22 d- and f- Block Elements 2 4

23 Coordination Compounds 2 4

24 Haloalkanes and Haloarenes 2 4

25 Alcohols, Phenols and Ether 2 4

26 Aldehydes, Ketones and Carboxylic Acids 2 4

27 Organic Compounds containing Nitrogen 2 4

28 Biomolecules 1 2

29 Polymers 1 2

30 Chemistry in Everyday Life 1 250 100Total



RCC STUDY MATERIAL QUESTIONNEET - 2021 PAPER QUESTION RCC TOPIC STUDYWITH P. NO.

Number of Questions




Sr. No. Chapter No. Of MCQs Percentage

1 Mole Concept 1 2






7 Equilibrium 1 2


9 Hydrogen 1 2



12 GOC 3 6

13 Hydrocarbons 1 2


15 Solid State 2 4

16 Solution 1 2




20 Metallurgy 2 4








28 Biomolecules 1 2

29 Polymers 1 2

30 Chemistry in Everyday Life 1 235 70

SECTION-A

Total




Number of Questions




Sr. No. Chapter No. Of MCQs Percentage

1 Mole Concept 0 0






7 Equilibrium 0 0


9 Hydrogen 0 0



12 GOC 0 0

13 Hydrocarbons 1 2


15 Solid State 0 0

16 Solution 1 2




20 Metallurgy 0 0








28 Biomolecules 0 0

29 Polymers 0 0

30 Chemistry in Everyday Life 0 015 30

SECTION-B

Total




Number of Questions




Chapter Section- A Section - B TotalMole Concept 1 0 1Structure of Atom 1 0 1Periodic Table 0 1 1Chemical Bonding and Molecular structure 2 1 3The States of Matter : Gases and Liquids 1 1 2Thermodynamics 1 1 2Equilibrium 1 0 1Redox Reaction 1 0 1Hydrogen 1 0 1S-block elements 2 0 2Some p-block elements - Group 13, 14 0 0 0GOC 3 0 3Hydrocarbons 1 1 2Environmental Chemistry 0 1 1Total 15 6 21

Chapter Section- A Section - B TotalSolid State 2 0 2Solution 1 1 2Electrochemistry 1 1 2Chemical Kinetics 1 1 2Surface Chemistry 1 0 1Metallurgy 2 0 2p-Block Elements - Group 15, 16, 17, 18 2 1 3d- and f- Block Elements 2 0 2Coordination Compounds 1 1 2Haloalkanes and Haloarenes 2 0 2Alcohols, Phenols and Ether 1 1 2Aldehydes, Ketones and Carboxylic Acids 0 2 2Organic Compounds containing Nitrogen 1 1 2Biomolecules 1 0 1Polymers 1 0 1Chemistry in Everyday Life 1 0 1Total 20 9 29

Class XI

Class XII




36 %

64 %

Classwise Distribution

Class XIClass XII



RCC STUDY MATERIAL QUESTIONNEET - 2021 PAPER QUESTION RCC TOPIC STUDYWITH P. NO.CHEMISTRY

• Difficulty level – Easy to Moderate• Physical Chemistry – 15 Questions

Organic Chemistry – 17 QuestionsInorganic Chemistry – 18 Questions

• All questions based on the NCERT textbook. Statements directly taken from the NECRTtextbooks.

• Straightforward questions & easy to comprehend.• One controversial question with more than one correct answer.• Not lengthy. Students should have completed the Chemistry part within 45 minutes.

Enough time for revision.• Barely a few calculations.• An average student should have been able to attempt approximately 40 questions with

ease.While others could have attempted 44 questions.The Chemistry section was of easy to moderate difficulty level. Organic Chemistryslightly less dominated the subject with 13 questions. 16 questions were asked fromPhysical Chemistry and 16 questions were from Inorganic Chemistry. All the questionswere from the prescribed NEET syllabus and completely based on the NCERT textbooks.In fact, statements were directly picked from the NCERT textbook. Questions werestraightforward and easy to comprehend. There was one controversial question withmore than one correct answer. Overall, the Chemistry section was not lengthy and studentsshould have completed this part in 40-45 minutes. With minimalistic calculations, anaverage student should have been able to attempt approximately 40 questions with ease,while others would have been able to attempt a minimum of 44 questions.

XI XII XI XII XI XII XI XII XI XII XI XIIEasy 1 3 1 1 2 4 0 1 1 3 2 0Medium 4 2 1 1 2 2 0 3 5 2 0 2Difficult 0 1 0 1 0 1 1 1 0 2 0 0

Level Sect-A Sect-BPhysical Chemistry Organic Chemistry Inorganic Chemistry

Sect-A Sect-B Sect-A Sect-B

12th Syllabus TotalChem Total XI Syllabus Total XII Syllabus TotalPhysical Chemistry 16 Physical Chemistry 7 Physical Chemistry 9Organic Chemistry 17 Organic Chemistry 5 Organic Chemistry 12Inorganic Chemistry 17 Inorganic Chemistry 8 Inorganic Chemistry 9Total 50 Total 20 Total 30

No. of Question Class Wise Distributions



RCC STUDY MATERIAL QUESTIONNEET - 2021 PAPER QUESTION RCC TOPIC STUDYWITH P. NO.SET : N-4


Solid State60. Right option for the number of

tetrahedral and octahedral voids inhexagonal primitive unit cell are1) 6, 12 2) 2, 13) 12, 6 4) 8, 4

114. The number of tetrahedral andoctahedral voids in hexagonalprimitive unit cell are1) 8, 4 2) 2, 1 3) 12, 6 4) 6, 12

RCCSolid State Booklet

Page - 26 Q. 114(Exactly Same

As it is)RCC

Do or Die BookletQ. No. 35 Page - 3(Exactly Same

As it is)

Atomic Structure85. A particular station of All India

Radio, New Delhi, broadcasts on afrequency of 1,368 kHz (kilohertz).The wavelength of theelectromagnetic radiation emittedby the transmitter is [speed of light,c= 3.0 × 108 ms–1]1) 219.2 m 2) 2192 m3) 21.92 cm 4) 219.3 m

16. The vividh bharati station of Allindia Radio, delhi,broadcasts on afrequency of 1,368 kHz (kilo hertz).Calculate the wavelength of theelectromagnetic radiation emittedby transmitter. Which part of theelectromagnetic spectrum does itbelong to?

Sol:

c

where c = velocity of E.M.R in

vaccum= 3 × 108 m sec–1

v = frequency = 1368 kHz = 1368×103 sec–1

=8 1

3 13.00 101368 10

mss

= 219.3m

This is a characteristic radiowavewavelength.

RCCStructure of atom

BookletPage - 63Q. No. 16

Solved Example

(Exactly SameAs It is

Question)

Solution69. The following solutions were

prepared by dissolving 10 g ofglucose (C6H12O6) in 250 ml of water(P1), 10 g of urea (CH4N2O) in 250 mlof water (P2) and 10 g of sucrose(C12H22O11) in 250 ml of water (P3).The right option for the decreasingorder of osmotic pressure of thesesolutions is :1) P1 > P2 > P3 2) P2 > P3 > P13) P3 > P1 > P2 4) P2 > P1 > P3

304. The three solutions containing 10 g. ofglucose. 10 g. of urea and 10 g ofsucrose in equal volumes have osmoticpressure of P1, P2 and P3 respectivelyWhich one of the following is correctin this case1) P2 > P1 > P3 2) P2 > P3 > P13) P1 > P2 > P3 4) P1 > P3 > P2

66. Arrange the following solutions inincreasing order of their osmoticpressures.(i) 34.2 g/litre sucrose(ii) 60 g/litre urea(iii) 90 g/litre glucose(iv) 58.5 g/litre of sodium chloride1) i < iii < ii < iv2) iii < i < iv < ii3) i < iii < iv < ii4) ii < iv < i < iii

RCCSolutionBooklet

Page - 87Q. No. 304

(Exactly SameAs it is)

RCCDo or Die Booklet

Page - 11Q. No. 66

(Exactly Si milarType of

Question)




Redox Reaction79. Which of the following reactions is

the metal displacement reaction?Choose the right option.

1) Cr2O3 + 2Al Al2O3+2Cr

2) Fe + 2HCl FeCl2+H2 3) 2Pb(NO3)2 2PbO + 4NO2 + O2

2KClO3 2KCl + 3O2

3. Match the reaction in Column I withthieir types in Column IIColumn Ii)

OH4OCrNOCr)NH( 23227224

ii) 2222 OHPbOOHPbO

iii) 2 3 2 3Cr O + 2Al Al O + 2Cr

iv) OHClClOHO2Cl 232

Column IIa) Intermolecular redox reactionb) Disproportionationc) Intermoelcular redoxd) Metal displacement1) (i) - c; (iii) - a; (iii) - a, d; (iv) - b2) (i) - a; (ii) - c; (iii) - d, (iv) - b3) (i) - b; (ii) - a; (iii) - a, d; (iv) - c4) (i) - a, b; (ii) - c; (iii) - a, d; (iv) - b


Page - 71Q. No. 3


Question)

p-block86. In which one of the following

arrangements the given sequence isnot strictly according to theproperties indicated against is?1) H2O < H2S : Increasing pKa values

< H2Se < H2Te2) NH3 < PH3 < AsH3 : Increasing acidic

< SbH3 character3) CO2 < SiO2 : Increasing oxidizing

< SnO2 < PbO2 power4) HF < HCl : Increasing acidic

< HBr < HI strength


Page - 67Q. No. 32


Question)

32. In which of the following arrange-ments, the sequence is not strictlyaccording to the property writtenagainst it ?1) CO2 < SiO2 < SnO2 < PbO2: increas-

ing oxidising power2) HF < HCl < HBr < HI : increasing acid

strength3) NH3 < PH3 < AsH3 < SbH3 : increas-

ing basic strength4) B < C < O < N : increasing first ion-ization enthalpy




Halo Alkanes & Halo Arenes78. The major product formed in

dehydrohalogenation reaction of2-Bromo pentane is Pent-2-ene. Thisproduct formation is based on?1) Hund’s Rule2) Hofmann Rule3) Huckel’s Rule4) Saytzeff’s Rule

RCCHalo Alkanes &

Halo ArenesBooklet

Page - 50Q. No. 1


Question)

&

Page-52Q. No. 25

(Exactly SimilarType of

Question)

1. Elimination reaction of 2-Bromo-pentane to form pent-2-ene is

(A) -elimination reaction(B)Follows Zaitsev rule (Saytzeff Rule)(C) Dehydrohalogenation reaction(D) Dehydration reaction1) (A), (C), (D) 2) (B), (C), (D)3) (A), (B), (D) 4) (A), (B), (C)

25. 2-Bromopentane is heated withpotassium ethoxide in ethanol. Themajor product obtained is1) 2-ethyoxypentane 2) pentene-13) trans-2-pentene 4) cis-pentene-2

Halo Alkanes & Halo Arenes77. The correct sequence of bond

enthalpy of ‘C–X’ bond is1) CH3–F> CH3–Cl>CH3–Br>CH3–I2) CH3–F<CH3–Cl>CH3–Br>CH3–I3) CH3–Cl> CH3–F>CH3–Br>CH3–I4) CH3–F<CH3–Cl<CH3–Br<CH3–I

103. In CH3–X the order of C–X bondstrength is1) CH3F > CH3Cl > CH3Br > CH3I2) CH3Cl > CH3Br > CH3I > CH3F3) CH3Br > CH3 I > CH3 F > CH3Cl4) CH3I > CH3 Br > CH3F > CH3 Cl

40. C – X bond is stronger in1) CH3Cl 2) CH3F3) CH3Br 4) CH3I

55. Which of the following order is correctamong the following.I. C –X Bond length order isH3C –F < H3C – Cl < H3C – Br < CH3 – III. C–X Bond enthalapiesH3C –F > H3C – Cl > H3C – Br > H3C – IIII. C–X Bond dipole moment

H3C–Cl > H3C–F > CH3–Br > CH3-I1) Only I & II2) Only II & III3) Only I & III4) All are correct

RCCHalo Alkanes &

Halo ArenesBooklet

Page - 42Q. No. 103


i. Page-90Q. No. 40

ii. Page - 91Q. No. 55


Question)




s-block80. The structures of beryllium chloride

in solid state and vapour phase, are1) Linear in both2) Dimer and Linear, respectively3) Chain in both4) Chain and dimer, respectively

37. An oxide of alkaline earth metals (X)reacts with C and Cl2 to give a compoundY. Y is found in polymeric chainstructure and is electron deficientmolecule. The compound Y is1) BeO 2) BeCl2

3) Be(OH)2 4) BeCO3

46. The following two figures represent

Cl – BeCl

ClBe – Cl

(i)

BeCl

ClBe

Cl

ClBe

Cl

Cl (ii)

1) (i) BeCl2 is a dimer in vapour phase;(ii) BeCl2 is chain structure in solidstate

2) (i) BeCl2 is in solid state; (ii) BeCl2is in vapour phase

3) (i) BeCl2 is monomer in solid state;(ii) BeCl2 is linear polymer invapour phase

4) (i) BeCl2 is linear monomer; (ii)BeCl2 is three dimensional dimer

RCCs-block

Booklet Page - 32 (Exactly Same AsIt is TheoreticalConcept )

s-block81. Among the following alkaline earth

metal halides one which is covalentand soluble in organic solvents is1) Strontium chloride2) Magnesium chloride3) Beryllium chloride4) Calcium chloride

151. Which of the following is more solublein ether or organic solvent?

1) BeCl2 2) CaCl23) SrCl2 4) BaCl2

63. Some of the Group 2 metal halides arecovalent and soluble in organicsolvents. Among the following metalhalides, the one which is soluble inethanol is1) BeCl2 2) MgCl2

3) CaCl2 4) SrCl2

RCCs-block Booklet

Page-42 Q. No. 151(Exactly Same As

It is Question)


i. Page - 85Q. No. 37

ii. Page-86Q. No. 46


Question)


i. Page - 87(Exactly Same

As It isQuestion)

BeCl2(s) BeCl2(g) K1200

above BeCl2(g)

(polymeric Chain) (Dimer)




Hydrocarbon

94. CH3CH2COO–Na+ NaOH,+ ?

Heat

CH3CH3+ Na2CO3

Consider the above reaction andidentify the missing reagent/chemical1) Red Phosphorus 2) CaO3) DIBAL–H 4) B2H6

IV. Decarboxylation of salt ofcarboxylic acid

Sodalime 1 Part3 Part

NaOH CaO

CaO

R–H + Na2CO3

Sod. salt of carboxylic acid Alkane

48. A CaO/NaOH B 32 AlBr/Br C

etherDry/Na

n-butane A and C are1) Methyl bromide, ethyl bromide2) Sodium acetate, methyl bromide3) Methane, methyl bromide4) Sodium propionate, ethyl bromide

14. Action of heat on a mixture of sodiumpropionate and sodalime produces:1) methane 2) ethane3) propane 4) ethylene

RCCHydrocarbon

BookletPage No. 3


TheoreticalConcept )

Page, No 30Q. No. 48

(Exactly SimilarType of Question)


Page - 118Q. No. 14


d & f block71. Zr(Z=40) and Hf(Z=72) have similar

atomic and ionic radii because of1) diagonal relationship2) lanthanoid contraction3) having similar chemical properties4) belonging to same group

308. The fact that can be explained basedon lanthanide contraction is1) Zr and Y have about the same

radius2) Zr and Nb have similar oxidation

state3) Zr and Hf have about same radius4) Zr and Zn have the same oxidation

state.23. The properties of Zr and Hf are similar

because :1) both belong to d-block2) both belong to same group of the

periodic table3) both have similar radii4) both have same number ofelectrons

RCCd & f block

BookletPage - 62

Q. No. 308(Exactly Similar

Type ofQuestion)


Page - 75Q. No. 23


Question)




Solid State70. The correct option for the number

of body centred unit cells in all 14types of Bravias lattice unit cells is1) 5 2) 23) 3 4) 7

RCCSolid State

BookletPage - 4



States of Matter51. Choose the correct option for

graphical representation of Boyle’slaw, which shows a graph ofpressure vs. volume of a gas atdifferent temperature :

1) 2)

3) 4)

27. From the graph the correct order oftemperature is1) T1 < T2 < T3

2) T1 = T2 = T3

T1

T2T3

P

V

3) T1 > T2 > T3

4) T1 < T2 > T3

RCCStates of Matter

BookletQ. No. 27/Page - 58


6. From the graph the correct order oftemperature is1) T1 < T2 < T3

2) T1 = T2 = T3

T1

T2T3

P

V

3) T1 > T2 > T3

4) T1 < T2 > T3


Q. No. 6Page - 36


Electrochemistry52. The molar conductance of NaCl, HCl

and CH3COONa at infinite diluteare 126.45, 426.16 and 91.0 S cm2 mol–

1 respectively. The molarconductance of CH3COOH atinfinite dilution is Choose the rightoption for your answer1) 390.71 S cm2 mol–1

2) 698.28 S cm2 mol–1

3) 540.48 S cm2 mol–1

4) 201.28 S cm2 mol–1

173. 03

CH COONa = 224 ohm–1 cm2 gm eq–1,

NaCl = 38.2 ohm–1 cm2 gm eq–1,

HCl = 203 ohm–1 cm2 gm eq–1

What is the value of 3

0CH COOH ?

1) 288.5 ohm–1 cm2 gm eq–1

2) 289.5 ohm–1 cm2 gm eq–1

3) 388.8 ohm–1 cm2 gm eq–1

4) 59.5 ohm–1 cm2 gm eq–1

RCCElectrochemistry

BookletQ. No. 173/

Page - 28(Exactly Same

As it is)


Q. No. 21Page - 62


173. 0ClCH COONa2 = 224 ohm–1 cm2 gm eq–1,

NaCl = 38.2 ohm–1 cm2 gm eq–1,

HCl = 203 ohm–1 cm2 gm eq–1

What is the value of 2

0ClCH COOH ?

1) 288.5 ohm–1 cm2 gm eq–1

2) 289.5 ohm–1 cm2 gm eq–1

3) 388.8 ohm–1 cm2 gm eq–1

4) 59.5 ohm–1 cm2 gm eq–1




Hydrogen58. Tritium, a radioactive isotope of

hydrogen, emits which of thefollowing particles?1) Alpha ()2) Gamma ()3) Neutron (n)4) Beta ()

Isotopes of Hydrogen Isotopes of H are 1

1 H (protium), 21 H

(or) D (deuterium) and 31 H (or) T

(tritium). Deuterium is also known as heavy

hydrogen. One part of tritium is present per 1018

parts of ordinary hydrogen mostly inthe form of HD

Of these isotopes, only tritium is radioactive and emit low energy harmless-particles.

RCCHydrogen

BookletPage - 1

Theory


p-Block Element82. Statement I :

Acid strength increses in the ordergiven as HF << HCl << HBr <<HI.Statement II : As the size of theelements F, Cl, Br, I increases downthe group, the bond strength of HF,HCl, HBr and HI decreases and sothe acid strength increases.In the light of the above statments,choose the correct answer of fromthe options given below.1) Both Statement I and Statement IIare false.2) Statement I is correct but StatementII is false.3) Statement I is incorrect butStatement II is true.4) Both Statement I and Statement IIare true.

Hydrogen Halides Bond strength, bond length and thermal

stability :• Since size of halogen atom increases

from F to I down the gorup, bond lengthof H–X bond increases down the group.

Reactivity and acidic character .

HF < HCl < HBr < HI• Bond strength is inversely, proportional

to bond length i.e., larger the bondlength, lower the bond strength is

HF > HCl > HBr > HI• Higher the bond dissociation energy,

greater will be thermal stability. Thus,thermal stability follows the order.

HF > HCl > HBr > HI.

RCCp-block

Mission inorganic

Page-12






Co-ordiantion Compound53. Ethylene diaminetetraacetate

(EDTA) ion is1) Unidentate ligand2) Bidentate ligand with two “N”donor atoms3) Tridentate ligand with three “N”donor atoms4) hexadentate ligand with four “O”and two “N” donor atoms

RCCCo-ordiantion

Comp.Booklet

Page - 70

Theory


GOC - Isomerism61. The compound which shows

metamerism is :1) C3H8O 2) C3H6O3) C4H10O 4) C5H12

13. Minimum number of carbon atoms inether to form metamers is1) 2 2) 33) 4 4) 5

14. The compoundsCH3 – O – C3H7 and C2H5 – O – C2H5exhibit1) metamerism2) optical isomerism3) chain isomerism4) cis-trans isomerism

RCCGOC - Isomerism

BookletPage - 54Q. 13, 14


GOC- Isomerism67. Dihedral angle of least stable

conformer of ethane is1) 180° 2) 60°3) 0° 4) 120°

I = III (Eclipsed form) in this formdistance between 2C–H bonds isminimum so maximum repulsion orminimum stable.

II = IV (Staggered form) in this formdistance between 2C–H bonds ismaximum so minimum repulsion somaximum stable.

There are infinite conformers betweeneclipsed and staggered forms whichare called as skew forms

Dihedral Angle : Dihedral anglein eclipsed form of ethane is 0°.So it is least stable conformer.

Dihedral angle in staggered form ofethane is 60°.

RCCGOC- Isomerism

BookletPage - 50

(Exactly SimilarTheoreticalConcept )




Polymer63. Which one of the following

polymers is prepared by additionpolymerisation?1) Nylon-66 2) Novolac3) Dacron 4) Teflon

1) Addn or chain growth polymarisn

Defn : These polymers are formed by addn

of monomers containg =, bond. (ofwithout elimination of smallmolecules like H2O, CH3OH.)

eg – i) LDPE,ii) HDPE ,iii) Teflon (PTFE) ,iv) Orlon (PAN-Polyacrylonitrile)v) PVC,vi) Polypropene

RCCPolymersBooklet

Page - 34

Theory(Exactly Same

As it is)

19. Find out odd from following1) Backelite 2) Melamine3) Nylon 4) Teflon


Page - 143Q. No. 19


Biomolecules54. The RBC deficiency is deficiency

disease of1) Vitamin B6 2) Vitamin B1

3) Vitamin B2 4) Vitamin B12

RCCBiomolecule

Do or Die BookletPage - 142Q. No. 57

(ExactlySimilar)

57. Pernicious anaemia is caused bydeficiency of1) vitamin B1 2) vitamin B2

3) vitamin B6 4) vitamin B12

Thermodyanmics68. Which one among the following the

correct option for right relationshipbetween CP and CV for one mole ofideal gas?1) CP–CV=R 2) CP = RCV

3) CV=RCP 4) CP + CV = R

Relation Between Cp and Cv for an Ideal Gas:

CP & CV are heat capacities at constantpressure and volume respectively.

from mayer's relation CP – CV = R

RCCThermodynamics

BookletPage - 37

(Exactly Same Asit is Theoretical

Concept )




Ionic Equilibrium65. The pKb of dimethylamine and pKa

of acetic acid are 3.27 and 4.77respectively at T(K). The correctoption for the pH ofdimethylammonium acetatesolution is1) 5.50 2) 7.753) 6.25 4) 8.50

37. Calculate the pH of one molarammonium formate Sol. pK a for HCOOH= 3.8; pKb for NH3 = 4.8.

Sol: Hydrolysis of ammonium acetate is givenby the equation as

HCOONH4 + H2O HCOOH + NH4OHpH of the Solof a salt of weak acid andweak base is calculated using

b a w1pH [logK logK logK ]2

a w b1

[pK pK pK ]2

pH of 1M HCOONH41 (3.8 14 4.8) 6.52

.

14. pKa of a weak acid (HA) and pKb of aweak base (BOH) are 3.2 and 3.4respectively. The pH of their salt (AB)solution at 25°C is1) 6.9 2) 7.03) 1.0 4) 7.2

RCCIonic Equilibrium

BookletPage - 63

Q. 37

(Exactly SimilarJust Values are

Change)

RCCDo or Die BookletPage - 56 Q. No. 14

(Exactly SimilarJust Values are

Change)

Chemical Bonding55. BF3 is planar and electron deficient

compound. Hybridization andnumber of electrons around thecentral atom, respectively are :1) sp3 and 6 2) sp2 and 63) sp2 and 8 4) sp3 and 4

IUPAC Name56. The correct structure of 2, 6-

Dimethyl-dec-4-ene is

1) 2)

3) 4)

93. BCl3 is a planar molecule because inthis molecule boron is1) sp3 hybridised2) sp2 hybridised3) sp hybridised4) Unh ybridised

100. The correct IUPAC name of thefollowing compound

is

1) 2, 6–Dimethylhepta–2, 6–diene2) 2, 6–Dimethylhepta–1, 5–diene3) 1, 1, 5–Trimethylhexa–l, 5–dienc4) 2, 6, 6–Trimethylhexa–1, 5–diene

RCCChemical Bonding

BookletPage - 27

Q. 93(ExactlySimilar)

RCCGOC IUPAC

BookletPage - 36

Q. 100(ExactlySimilar)




Solutions93. The correct option for the value of

vapour pressure of a solution at 45°Cwith benzene to octane in molarratio 3:2 is[At 45° C vapour pressure ofbenzene is 280 mm Hg and that ofoctane is 420 mm Hg. Assume Idealgas]1) 168 mm of Hg 2) 336 mm of Hg3) 350 mm of Hg 4) 160 mm of Hg

175. A solution has 1:4 molar ratio ofpentane and hexane. The vapourpressure of pure hydrocarbons at 20ºCare 440 mm Hg for pentane and 120mm of Hg for hexane. The molefraction of pentane in vapour phasewould be1) 0.200 2) 0.4783) 0.547 4) 0.786

176. The vapour pressure of two liquids ‘P’and ‘Q’ are 80 and 60 torr respectively.Calculate the total vapour pressure ofthe solution obtained by mixing 3moles of P and 2 moles of Q.1) 72 torr 2) 27 torr3) 60 torr 4) 70 torr

25. A solute has 2:3 mass ratio of touleneto benzene, the vapour pressure ofbenzene and toulene at 25°C are 95 and28 bar respectively, the mole fraction ofToulene vapour is1) 0.658 2) 0.3263) 0.548 4) 0.855

RCCSolutions

BookletPage - 73

Q. No. 175, 176(Exactly Similar

Type of Question)(Just Values are

changed)


Page - 8Q. No. 25


Chemical Kinetics87. The slope of Arrhenius Plot

1ln k v / sT

of first order reaction is

–5 ×10 3K. The value of Ea of thereaction is. Choose the correctoption for your answer.[Given R = 8.314 JK–1 mol–1]1) 83.0 kJ mol–1 2) 166 kJ mol–1

3) – 83 kJ mol–1 4) 41.5 kJ mol–1

36. The temperature dependence of therate constant k is expressed as k = Ae–

Ea/RT. When a plot between log k and1/T is plotted we get the graph asshown. What is the value of slope inthe graph ?

1) aERT

2) aE2.303R

3) aE log A2.303RT

4) aE R2.303 T

RCCChemical Kinetics



Question)




Aldehyde ketone Carboxylic acid+ Alcohol Phenol ether91. Match List-I with List-II

List-I List-II

a) 3

CO,HClAnhyd.AlCl /CuCl i) Hell-Volhard-

Zelinskyreaction

b) 3

O||

R C CH + ii) Gattermann-Koch

NaOX reactionc) R–CH2–OH iii) Haloform reaction

+R’COOH’

2 4Conc.H SO

d) R–CH2COOH iv)Esterification

2

2

i)X /RedP

ii) H O

Choose the correct answer from theoptions given below.

1) a -iii, b-ii, c-i, d-iv 2) a-i, b-iv, c-iii, d-ii3) a-ii, b-iii, c-iv, d-i 4) a-iv, b-i, c-ii, d-iii

RCCAldehyde Ketone

& Carboxylicacid

BookletPage - 23, 6


IV) Halogenation• Hell–Vohlard–Zelinsky reaction

(-halogenation)HBrCOOHH

XCRCOOHH

HCR

|OH.ii

phosphorusred/X.i

| 2

2

4) By Gatterman-Koch reaction

Benzene

+ CO + HCl anhy AlCl 3CHO

Benzaldehyde

2. Esterification

R’CO OH+H –OR R’COOR + H O2

Ester

H SO (conc.)2 43 2 5 3 2 5 2Heat

Acetic acid Ethyl alcohol Ethyl acetateCH COOH+ HOC H CH COOC H + H O

1. Which of the following correct set ofname reaction:

a.

Cannizzaro reaction

b. CH3–CH2–CHO ΔNaOH

3

2 3

CH|C CH CH CH|CHO

Aldol condensation

c.CH3–CH2–COOH Δ

NaOH CH3–

Cl|

COOHCH

HVZ reaction

d.

Hoffmann’s bromide1) a, b 2) b, c,3) a, b, c 4) All of these


Page - 112Q. No. 1


Question)

RCCAlcohol Phenol

EthersBooklet

Page - 60,(Exactly Same





d & f block57. The incorrect statement among the

following is :1) Most of the trivalent Lanthanoid

ions are colourless in the solid state.2) Lanthanoids are good conductors of

heat and electricity3) Actinoids are highly reactive metals,

especially when finely divided4) Actinoid contraction is greater for

element to element than Lanthanoidcontraction

RCCd & f block

BookletPage - 42

Theory

(ExactlySimilar)

a) Lanthanides : Defn : These are the element in which last

electron entres in 4f orbital ofantipenultimate shell.

They form Ist inner transition series. General electronic confn 4f1–14, 5d°–1, 6s2. These elements starts from. 58Ce to 71Lu They have similar properties to

Lanthanum so, called as Lanthanides(Lanthanones).

These are 14 elements. Most of the trivalent Lanthanoids

are colour due to the presence ofunpaired electron

Chemical Kinetics59. For a reaction A B, enthalpy of

reaction is – 4.2 kJ mol–1 andenthalpy of activation is 9.6 kJ mol–

1. The correct potential energyprofile for the reaction is shown inoption.

1) 2)

3) 4)

204. Given the energyprofile for the reactionA + B C + D

Pick up the correct statement1. Activation evergy for the reaction

C + D A + B is(x+y)2. H of the reaction

A + B C + D is –y3. Threshold energy of the reaction isx + y + z1) 1 and 2 2) 2 and 33) 1 and 3 4) 1, 2 and 3

RCCChemical Kinetics

BookletPage - 78

Q. 204

(ExactlySimilar)


Q. No. 7

Page - 31(Exactly Similar)




Alcohol Phenol Ether62. Which is the IUPAC name of the

organic compound formed in thefollowing chemical reaction?

Acetone (i)C H MgBr, dry Ether2 5+(ii)H O, H2

Product

1) pentan-2-ol2) pentan-3-ol3) 2-methylbutan-2-ol4) 2-methylpropan-2-ol

60. Consider the following sequence ofreactions:

A 2 5C H Mgl X 2H / H O

tert -

amylalcoholThe compound A in the above sequenceof reactions is:1) 2- Butanone 2)Acetaldehyde3) Acetone 4)Propanal

RCCAlcohol Phenol

EtherBooklet

Page - 97Q. 60

(Exactly Similar)

RCCAlcohol Phenol

EtherBooklet

Page - 58Theory

C. Primary of Tertiary Alcohol :CH –C=O + CH –Mg-I3 3

CH 3

Acetone

Methyl Magnesium Iodide

etherdry

3

3

3

Mg-complex

CH|

CH C O Mg - I|CH

H O H2+

CH –C–OH + Mg3

CH3

Tert.-Butyl alcohol

CH3

OH

I


Q. No. 32Page - 103

(Exactly Similar)

32. (CH3)2CHOH OxidMild X

HOHii.

MgBrCHi. 3 Y Here Y is

1) Isobutyl alcohol 2) tert-Butyl alcohol3) Isobutylene 4) sec-Butyl alcohol

Metallurgy72. Which one of the following

methods can be used to obtainhighly pure metal which is liquidat room temperature?1) Chromatography 2) Distillation3) Zone refining 4) Electrolysis

iii) Distillation : • This is very useful for low boiling

metal like Zn & Hg. The impure metalis evaporated to obtain the pure metalas distillate

RCCMetallury

BookletPage - 10Theory




Chemical Bonding64. Match List-I with List-II

List-I List-IIa) PCl5 (i) Square pyramidalb) SF6 (ii) Trigonal planarc) BrF5 (iii) Octahedrald) BF3 (iv) Trigonal bipyramidalChoose the correct answer from the

options gien below.1) (a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)2) (a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)3) (a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)4) (a)-(iv), (b)-(iii), (c)-(i), (d)-(ii)

132. Match the interhalogen compounds ofcolumn-I with the geometry in column -II and assign the correct code.Column I Column IIA. XX’ i. T-shapeB. XX’3 ii. Pentagonal bipyramidalC. XX’5 iii. LinearD. XX’7 iv. Square-pyramidal

v. Tetrahedral1) A-iii, B-i, C-iv, D-ii2) A-v, B-iv, C-iii, D-ii3) A-iv, B-iii, C-ii, D-i4) A-iii, B-iv, C-i, D-ii

6. Match the lists I and II and writethe correct matchingList-I (Species) List-II (Geometry)A. H3O+ 1.PlanarB. H2C = NH 2.AngularC. ClO2 3.TetrahedralD. NH4

+ 4. Trigonal bipyramidalE. PCl5 5.Pyramidal1) A-2, B-1, C-3, D-5, E-42) A-1, B-5, C-2, D-3, E-43) A-5, B-1, C-2, D-3, E-44) A-3, B-1, C-4, D-5, E-2

RCCChemical Bonding

BookletPage - 30

Q. 132

(ExactlySimilar)


Page - 26Q. No. 6

(Exactly Similar)

Chemistry in Everday life66. Give below are two statements :

Statement I :Aspirin and Paracetamol belong theclass of narcotic anallgesics.Statement II :Morphine and Heroin are non-narcotic analgesics. In the light ofthe above statements, choose thecorrect answer from the optonsgiven below.1) Both statement I and statement II are

false2) Statement I is correct but statement

II is false3) Statement I is incorrect but stateemnt

II is true4) Both statement I and statement II are

true

RCCChemistry ineverday life

BookletPage - 51


6

• Act at inflammation • Severe use causes -

toxici ty & -toxicity

• To treat moderate pain, body pain, minor cut, Arthritis, Headache, Gaut.

e.g. Analgin, Ibuprofen , Naproxen, Nimesulide

site Renal

Hepato

Aspirin,

• Act via • Severe use causes

• Used to treat pain. (labour pain, Burn, Fractur, Cancer, Post-operative pain)

e.g.

(diacetyl morphine)

Mo r phi ne , c o d e i n e

CNS

additionsevere

heroin

Non-NarcoticNarcotic

42. Which statement about apsirin is nottrue ?1) Aspirin belongs to narcoticanalgesics2) It is effective in relieving pain3) It has antiblood clotting action4) It is a neurologically active drug


Page - 148Q. No. 42





Amines73. Identify the comound that will react

with Hinsberg’s reagent to give asolid which dissolves in alkali.

1)

2)

3)

4)

5) Hinsberg’s test : (Distinction test)i) Primary amines :

R – NH2 + C6H5SO2Cl

2 6 5N-alkyl benzenesulphonamide

R NHSO C H + HCl

dissolveKOH

RCCAminesBooklet

Page - 87



Hydrocarbon74. The major product of the following

chemical reaction is :

– CH= CH2 + HBr 6 5 2 2(C H CO) O ?

1)CH3

CH3 CH–CH –CH –O–COC H2 2 6 5

2) CH3

CH3

CH–CH–CH3

Br

3)CH3

CH3

CBr–CH –CH2 3

4)CH3

CH3

CH–CH –CH –Br2 2

45. CH3CH2 – CH = CH2 + HBr

ROORMinorMajor[Y][X] ; [X] & [Y]

respectively are

1) BrCH2CH2CH = CH2 & C2H5 –CHBr – CH3

2) C2H5–CH2CH2–Br & Br–CH2CH2–CH=CH2

3) C2H5 – CH2 – CH2Br & C2H5–CHBr – CH3

4) C2H5CHBr – CH3 & C2H5 – CH2 –CH2 Br

43. Observe the following reactions andpredict the nature of A and B.

B2 2

HBrH O

1) A and B both are

2) A and B both are

3) A is & B is

4) A is & B is

RCCHydrocarbon



Question)


Page - 120Q. No. 43


Question)




Surface Chemistry75. The right option for the statement

“Tyndall effect is exhibited by” is1) Glucose solution2) Starch Solution3) Urea Solution4) NaCl solution

p-block76. Noble gases are named because of

their inertness towards reactivity.Identify an incorrect statementabout them.1) Noble gases have very high melting

and boiling points.2) Noble gases have weak dispersion

forces.3) Noble gases have large positive

values of electron gain enthalpy.4) Noble gases are sparingly soluble inwater.

13. Tyndall effect is observed only wheni) the diameter of the dispersedparticles is not much smaller than thewavelength of the light usedii) the refractive indices of dispersedphase and dispersion medium differgreatly in magnitudeiii) the size of the particles is generallybetween 10–11 and 10–9 m in diameteriv) the dispersed phase anddispersion medium can be seenseparated in the system1) (i) and (iii) 2) (i) and (iv)3) (ii) and (iii) 4) (i) and (ii)

RCCSurface ChemistryDo or Die Booklet

Page - 40Q. No. 13

(Similar Typeof Question)

4) Melting point and boiling point :

• They have low M.P. & B.P.• M.P. and B.P. of noble gases increases

from He to Rn.

Atomic mass or size ,polarisability ,London force

Liquification increases because

• He < Ne < Ar < Kr < Xe < Rnmpt. bptMagnitude of London forces increases.

• He < Ne < Ar < Xe < Rn5) Solubility in water :

• Solubility of noble gases in waterincreases from He to Xe

because dipole induced dipoleattraction increases

• They are sparingly soluble inwater

He < Ne < Ar < Xe < Rn

RCCp-block Chart

Page - 7






Mole Concept83. An organic compound contains 78%

(by wt.) carbon and remainingpercentage of hydrogen. The rightoption for the empirical formula ofthis compound is (Atomic wt. of Cis 12, H is 1)1) CH2 2) CH3

3) CH4 4) CH

41. A hydrocarbon has 75% C. Thus,hydrocarbon is1) CH4 2) C2H6

3) C2H4 4) C2H2

RCCMole Concept

BookletPage - 17


Question)

Metallurgy84. The maximum temperature that can

be achieved in blast furnace is1) upto 2200 K 2) upto 1900 K3) upto 5000 K 4) upto 1200 K

146. In the blast furnace during theextraction of iron the temperatureattained in the hearth is nearly1) 4000C 2) 10000C3) 15000C 4) 20000C

Hint : 2000 + 273 = 2273 K

RCCMetallurgy

BookletPage - 28

Q. No. 146


Question)

Environmental Chemistry90. Match List–I with List-II

List-I List-IIa) 2SO2(g) + O2(g) i) Acid rain

2SO3(g)

b) HOCl(g) hv ii) Smog

• •

O H + C lc) CaCO3 + H2SO4 iii) Ozone depletion

CaSO4 + H2O + CO2

d) NO2(g) hv iv) Tropospheric

NO(g) + O(g) pollutionChoose the correct answer from theopitons given below.1) a-ii, b-iii, c-iv, d-i2) a-iv, b-iii, c-i, d-ii3) a-iii, b-ii, c-iv, d-i4) a-i, b-ii, c-iii, d-iv

N2(g) + O2(g) 1483 K 2NO(g)

NO reacts instantly with oxygen to giveNO22NO(g) + O2(g) 2NO2(g)The rate of production of NO2 is highwhen nitric oxide reacts with ozone inthe stratosphere.NO(g) + O3(g) NO2(g) + O2(g)

Formation of photo chemical smog: When fossil fuels are burnt, two

pollutants (NO) are emitted intoatmosphere.

The formation of photo chemical smogare : sun light. oxygen atom.

NO2(g) hv NO(g) + O(g) with the O2

in air to produce O3O(g) + O2(g) O3(g)

Regeneration of NO2.NO(g)+O3(g)NO2(g)+O2(g)

RCCEnvironmental

Chemistry

BookletPage - 83, 84





Chemical Bonding88. Which of the following molecules is

non-polar in nature?1) CH2O 2) SbCl5

3) NO2 4) POCl3

192. Which of the following is non-polar1) H2S 2) NaCl3) Cl2 4) H2SO4

200. In which of the following bonds arepolar but molecule is non-polar

1) HCO3 OCH3

2) Cl I

3) SF6

4) CHCl3

201. Which of the following compounds isplanar and non-polar?1) XeO4 2) SF43) XeF4 4) CF4

RCCChemical Bonding

BookletPage - 33


Type of Question)

RCCChemical Bonding

BookletPage - 33

Q. No. 192Page - 34

Q. No. 200, 201(Exactly Similar

Type ofQuestion)

126. Match the lists I and II and pick thecorrect matching from the codes givenbelowList -I List -II(complex) (Structure & magnetic mo-ment)

a) [Ag(CN)2]– 1) square planar & 1.73 BMb) [Cu(CN)4]3– 2) Linear and zeroc) [Cu(CN)6]4– 3) Octahedral and zerod) [Cu(NH)3)4]2+ 4) tetrahedral and zeroe) [Fe(CN)6]4– 5) octahedral and 1.73BM1) a-2,b-4,c-5,d-1,e-3 2) a-5,b-4,c-1,d-3,e-23) a-1,b-3,c-4,d-2,e-5 4) a-4,b-5,c-2,d-1,e-3

Co-ordiantion Comp.89. Match List-I with List-II

List-I List-IIa) [Fe(CN)6]3– i) 5.92 BMb) [Fe(H2O)6]3+ ii) 0 BMc) [Fe(CN)6]4– iii) 4.90 BMd) [Fe(H2O)6]2+ iv)1.73 BMChoose the correct answer from theoptions given below.1) a-ii, b-iv, c-iii, d-i2) a-i, b-iii, c-iv, d-ii3) a-iv, b-i, c-ii,d-iii4) a-iv, b-ii, c-i, d-iii

RCCCo-ordination

Comp.Booklet

Page - 93Q. No. 126


Question)RCC

Do or Die BookletPage - 81Q. No. 32

Similar Type




Thermodynamics92. For irreversible expansion of an

ideal gas under isothermalcondition, the correct option is1) U 0, Stotal 02) U 0, Stotal 03) U 0, Stotal 04) U 0, Stotal 0

10. During isothermal expansion of anideal gas, its internal energy1) Decreases2) Increases3) May increase or decrease4) Remains unchanged

101. For an irreversible process, the valueof[S(system) +S(surroundings)] is1) > 0 2) < 03) 0 4) 2S(surr)

RCCThermodynamics


&Page-50

Q. No. 101


Question)

Alcohol Phenol Ether95. The product formed in the

following chemical reaction is

CH –C– OCH2 3

CH3

OO

4

2 5

NaBH

C H OH ?

1)CH –CH –OH2 2

CH3

O

2)CH –C–CH2 3

CH3

OH

OH

3)

OCH –C–OCH2 3

CH3

OH

4)

HCH –C–OCH2 3

CH3

OH

OH

RCC

Special NaBH4 reduces only

O||

R C H ,

O||

R C R ,

O||

R C Cl

(No efffect on C = C, N = N, C N , NO2,ester group)

RCCAlcohol Phenol

EtherBooklet

Page No. 58(Exactly Similar


41. The product formed in the followingreaction

is

1) 2)

3) 4)


Page - 104Q. No. 41


Question)




Electrochemistry96. The molar conductivity of 0.007 M

acetic acid is 20 S cm2 mol–1. What isthe dissociation constant of aceticacid? Choose the correct option.

+

-3

° 2 -1H

° 2 -1CH COO

Λ = 350Scm mol

Λ = 50S cm mol

1) 2.50 × 10–4 mol L–1

2) 1.75 × 10–5 mol L–1

3) 2.50 × 10-5 mol L–1

4) 1.75 × 10–4 mol L–1

9. The equivalent conductance of M32

solution of a weak monobasic acid is 8.0mhos cm2 and at infinite dilution is 400mhos cm2. The dissociation constant ofthis acid is :- [2009]1) 1.25 × 10–6 2) 6.25 × 10–4

3) 1.25 × 10–4 4) 1.25 × 10–5

RCCElectrochemistry

BookletPage - 39


Type ofQuestion)

States of Matter97. Choose the correct option for the

total pressure (in atm) in a mixtureof 4 g O2 and 2g H2 confined in atotal volume of one litre at 0° C is[Given R = 0.082 L atm mol–1 K–1,T= 273 K]1) 2.602 2) 25.183) 26.02 4) 2.518

26. A two litre flask contain a mixture of16g of oxygen, 7g of nitrogen and 2g ofhydrogen at 20°C. Report the totalpressure and partial pressures.

Sol: Total number of moles of mixture =2 21 1

16gof O 7g of N32g mol 28g mol

2

1

2gof H2gmol

= 1 1 712 4 4

Using ideal gas equation,

RT 7 0.0821 293P nV 4 2

= 21atm

15. The total pressure of a mixture of 8g ofoxygen and 14g of nitrogen contained ina 11.2L vessel at 0ºC is.1) 0.5 atm 2) 1 atm3) 1.5 atm 4) 2 atm

RCCStates of Matter

BookletPage -69Q. No. 26

Solved example(Exactly Similar

Type ofQuestion)

(Just values arechanged)


Page - 37Q. No. 15


Question)(Just values are

changed)




Periodic Table98. From the following pairs of ions

which one is not an iso-electronicpair?1) Na+, Mg2+ 2) Mn2+, Fe3+

3) Fe2+, Mn2+ 4) O2–, F–

127. Which of the following groupingrepresents a collection of iso-electionicspecies?1) Ca2+, Cs2+, Br 2) Na+, Ca2+, Mg2+

3) N3–, F–, Na+ 4) Be, Al3+, Cl+

25. The ions O2–, F–, Na+, Mg2+, andAl3+ are isoelectronic. Their ionicradii show -1) an increase from O2– to F– and then

decrease from Na+ to Al3+

2) a decrease from O2– to F– and thenincrease from Na+ to Al3+

3) a singnificant increase from O2– toAl3+

4) a singnificant decrease from O2– toAl3+

RCCPeriodic Table

BookletPage - 20


Type ofQuestion)


Page - 66Q. No. 25


Question)

Amines99. The reagent ‘R’ in the given

sequence of chemical reaction is

NH2

Br Br

Br

2NaNO ,HCl0-5°C

N Cl2+ –

Br Br

Br

R

Br Br

Br

1) CH3CH2OH 2) HI3) CuCN/KCN 4) H2O

Ar–N X2+ –

H PO + H O/CuCl3 2 2 ArH + N + H PO + HX2 3 3

RCCAmines Booklet

Page - 89(Exactly Same As It

is TheoreticalConcept )

42. Mark the incorrect pairing

1)6 5 2 3 2 2C H N Cl H PO H O

Cu

C6H6+H3PO3+HPCl + N2

2)(Benzene)

6 5 2 6 6C H N Cl C H NaOH

6 5 6 5(Diphenyl)

C H C H +N2 + NaCl + H2O

3) 6 5 2C H N Cl HBF4

HCl 26 5 4

6 5 3 2(Fluorobenzene)

C H N .BF

C H F BF N

4)6 5 2C H N Cl

+ C2H5OH heat

6 5(Phenol)

C H OH +N2+HCl + CH3CHO


Page - 134Q. No. 42


Question)




Aldehyde Ketones100. The intermediate compound ‘X’ in

the following chemical reaction is

CH3

+CrO2Cl2 2CS X +

3H O

C H

O

1)CH(OCOCH )3 2

2)CH

ClCl

3)CH

ClH

4) CH(OCrOHCl )2 2

1) Etard reaction (CrO2Cl2)

CH3

Toulene

2CrO Cl2 2

CS2

2CrO Cl CH

OCrOHCl2

OCrOHCl2H O3

+ CHO+ CrO Cl + 2H2 2 2

Chromium complex Benzaldehyde

RCCAldehyde Ketones

BookletPage - 6

(Exactly Similartype of

Question)

sr. no. chapter no. of mcqs percentage

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