iupac

[1]

IUPAC

MULTIPLE CHOICE QUESTIONS :

4. The IUPAC name of the compound, CH2=CH–CH(CH3)2 is -

(a) 1,1-Dimethylprop-2-ene (b) 3-Methylbut-1-ene

(c) 2-Vinylpropane (d) 1-Isopropylethylene.

10. The compound which has one isopropyl group is -

(a) 2,2,3,3-Tetramethylpentane (b) 2,2-Dimethylpentane

(c) 2,2,3-Trimethylpentane (d) 2-Methylpentane

11. The IUPAC name of the compound COClCHHCCHCH

CH

2

|

23

3

is -

(a) 3-Methylpentanoyl chloride (b)3-Methylbutanoyl chloride

(c) 1-Chloro-3-ethylbutanone (d) 1-Chloro-3-methylpentanone.

14. The IUPAC name of

3222

2|

CHCHCHCH

CHCHHCCHOHCCH

(a) 5-Vinyloct-3-en-1-al (b) 4-butylhexa-2, 5-dien-1-al

(c) 5-vinyloct-5-en-8-al (d) 3-Butylhexa-1,4-dien-8-al.

20. Which of the following compounds with molecular formula C8H14, do not contains 12 secondaryand 2 tertiary H atoms. The compound is -

(a) (b) (c) (d)

21. Choose the correct IUPAC name for

32

|3

CHCH

CHOHCCH

is -

(a) Butan-2-aldehyde (b) 2-Methylbutanal

(c) 3-Methylisobutyraldehyde (d) 2-Ethylpropanal.

EXERCISE- I

Answer Key

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15d b a b c a b,d d b d a c a b d

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30a a c c a b b b b d c d c a,c a,c,d

31 32 33 34 35 36 37 38 39 40 41c d b,c,d a d d b b a c a

[2]

IUPAC

MULTIPLE CHOICE QUESTIONS :

1. The compound given below is named as (IUPAC)

(a) Vinyl acetylene (b) But-1-en-3-yne (c) 1-butyne-3-ene (d) Ethyne ethene.


COOCH3

COCl(a) 2-chloro carbonyl ethyl benzoate (b) 2-carboxy ethyl benzoyl chloride

(c) Methyl-2-(chlorocarbonyl) benzoate (d) None is correct

4. The correct IUPAC name of

C N COOH

(a) 4-isocyano benzene carboxylic acid

(b) 4-carbylamino benzoic acid

(c) 1-carboxylic-4-isocyano benzene

(d) None of these.

5. IUPAC name of

H3C C C OCH3

CCH3O

O O

(a) methyl-2,2-acetyl ethanoate (b) 2, 2-acetyl-1-methoxy ethanone

(c) methyl-2-acetyl-3-oxobutanoate (d) None is correct.

6. The correct IUPAC name for the following compound

is -

(a) 1,1,5-trimethyl-1, 6-hexadience (b) 2,6-dimethyl-2, 6-heptadiene

(c) 2,6-dimethyl-1, 5-heptadiene (d) 1, 5-dimethyl 1-1,6-hepadiene

EXERCISE- II

[3]

IUPAC

8. The correct IUPAC name of the compound COOHHCHOOC

COOH |

is -

(a) propane 1,2,3-tricarboxylic acid (b) propane 1,2,3-trioic acid

(c) 2-carboxypropane dioic acid (d) methane tricarboxylic acid

9. The correct IUPAC name of the compound H C – CH – CH Cl 2 2

O

is-

(a) 2-epoxy-1-chloropropane (b) 2, 3-epoxy-1-chloropropane

(c) epoxy 1-chloropropane (d) 3-chloro-1, 2-epoxy propane.

10. What is the IUPAC name of the following compound -

HCCH

HCCH

CH

|3

|

|3

3

H3CCH2CH2CH2CHCH2CH2CH2CH3

(a) 6,7-Dimethyl-5-butyl octane (b) 2,3-Dimethyl-1-4-butyl octane

(c) 5-(1,2-Dimethyl propyl) nonane (d) All these are correct.

11. The compound OHCOHC

O || will be named in IUPAC as -

(a) Glyoxalic acid (b) Formyl methanoic acid

(c) 2-aldoethanoic acid (d) All these are correct

12. The correct IUPAC name of the compound CH3CH(OH)CH2C(OH(CH3)2 is-

(a) 2-methylpentane-2,4-diol (b) 4-methyl-2, 4-pentane-2,4-diol

(c) 1,1-dimethyl-1, 3-butanediol (d) 1,3,3-trimethyl-1,3-propanediol

13. Choose the correct IUPAC name of the following compound

32

|

|

|3

CHCH Me

EtC NCH

Me

(a) N-Dimethyl 1-methyl-1-ethyl propane

(b) 3-Methyl-3-(N,N-dimethyl amino) pentane

(c) N-Dimethyl amino-3-methyl pentane

(d) None of the above.

14. The correct IUPAC anme of the compound

[4]

IUPAC

O

OHCCH

OHCCH

O

||2

||

|2

is -

(a) succinic acid (b) Butane dicarboxylate

(c) Butane-1,4-dioic acid (d) 1,2-dicarboxy ethane.

15. The IUPAC name of the compound is-

(a) 2,4,6-heptatriene (b) 2,4,5-triheptene

(c) 2,4,6-triheptene (d) hepta-1,3,5-triene.

16. The IUPAC name of the compound

H C3

H C3

N

H

O

is -

(a) N, N-dimethyl formamide (b) N, N-dimethyl amino methanol

(c) N, N-dimethyl formamine (d) N, N-dimethyl methanamide

17. The correct IUPAC name of the following compound is

OH

O

OHO

O N2

(a) 7-nitro-4 (carboxymethyl) heptanoic acid(b) 6-nitro-3-(carboxy ethyl) hexanoic acid(c) 4-(3-nitro propyl) hexane-1,6-dioic acid(d) 3-(3-nitro propyl) hexane-1,6-dioic acid


CH COOH2

HO COOHCH COOH2

is-

(a) 1,2,3-tricarboxy-2-propanol (b) 3-carboxy-3-hydroxy-1,5-pentanedioic acid

(c) Citric acid (d) 2-hydroxy propane-1,2,3-tricarboxylic

19. The IUPAC name of the compound C

OOO

C C CC

is -

(a) 1,2,3-tri-formyl propane (b) 3-formyl-15-pentane dial

(c) Propane-1,2,3-trial (d) Propane-1,2,3-tricarbaldehyde.

20. The correct IUPAC name of the following compound is-

(a) 7-ethyl-2,4,5,6-tetra methyl deca-1,8-diene

[5]

IUPAC

(b) 4-ethyl-5,6,7,9-tetra methyl deca-2,9-diene

(c) 2,4,5,6-tetramethyl-7-ethyl-deca-1,7-diene

(d) None of these

21. The IUPAC of the compound HCOHCHCCCH

NO OH O

2

||||

3

2

is-

(a) 2-nitro-3-hydroxy-4-oxopentanoic acid

(b) 2-nitro-3-hydroxy-4-pentanon-1-oic acid

(c) 4-amino-3-hydroxy-2-oxopentanoic acid

(d) 3-Hydroxy-2-nitro-4-oxopentanoic acid

22. The correct IUPAC name of OHCHCHCCHCH

HC

22

||

23

2

is -

(a) 2-ethyl prop-1ene-2-ol (b) 2-ethyl prop-2-ene-1-ol

(c) 2-allyl-1-butanol (d) 3-Ethyl but-3-en-ol.

23. The IUPAC name ofthe compound 52

||

2

||

2

3

HOCCCHCCHO

HC

is -

(a) Ethyl aceto ethanoate (b) Ethylmethyl butenoate

(c) Ethyl acrylate (d) Ethyl 3-methylbut-3-enoate

24. The IUPAC name of the compound H

H C N

C N is-

(a) 1,2-dicyano ethene (b) but-2-ene-1,4-dinitrile

(c) di-but-2-en-1,4-nitrile (d) None of these

25. The IUPAC name of the

COOH

OHCHHCNH 2|

2 compound is -

(a) 1-amino-2hydroxy propanoic acid (b) 2-amino-2-carboxy pentanol

(c) 2-amino-3-hydroxy propanoic acid (d) 1-hydroxy-2-amino-3 propanoic.

26. The compound HH

has the IUPAC name -

(a) 1,3-penta-di-yne (b) penta-1, 4-di-yne

(c) Propane-1, 3-di-yne (d) pentane-1,3-di-yne.

27. The correct IUPAC name of tartaric acid is -

(a) 1,4-dihydroxybutane-2,3-dioic acid (b) 2,3-dihydroxybutane-1,4-dioic acid

[6]

IUPAC(c) 1,4-dicarboxy-2,3-dihydroxy ethane (d) ’-dihydroxy butane-1,4-dioic acid


OH

OH is-

(a) 1,2-dimethyl cyclo 3,4-butene-di-ol

(b) 1,2-dihydroxy 3,4-dimethyl cyclo but-3-ene

(c) 2,3-dimethyl cyclo but-2-ene-1,4-diol

(d) 3,4-dimethyl cyclo but-3-ene-1,2-diol.


O

is-

(a) Tetra methyl propylene oxide (b) 1,1,2,2-tetramethyl oxopropane

(c) 1,1,2,2-tetramethyl epoxy propane (d) 2,3-Dimethyl-2, 3-epoxybutane.

35. What is correct IUPAC name of the following compound -

(a) Cumene (b) Isopropyl benzene

(c) Phenyl isopropane (d) 2-Phenyl propane.

36. The correct IUPAC name of the compound C C H2 5

CH3

H

(a) 3-Cyclohexyl butane (b) 2-phenyl butane

(c) 3-phenyl butane (d) 2-cyclohexyl butane

38. The correct IUPAC name of the compound CH2CH3

CH CH2 3 is -

(a) cis-1,2-diethyl cyclohexane (b) trans-1,2-diethyl cyclohexane

(c) cis-2, 3-diethyl cyclohexane (d) trans-2, 3-diethyl cyclohexane

39. The correct IUPAC name of the compound O

CH3H2C

CH3

is-

(a) 2,4,6-trimethyl cyclohexanone (b) 1,3,5-trimethyl benzophenone

(c) Trimethyl cyclobutanone (d) 1-keto-2,4,6-trimethyl cyclohexene.

[7]

IUPAC

40. Th IUPAC name of the compound having following structure

CH3

CH3H3C

H C3

is -

(a) 1,2,3,4-tetramethyl cyclo but-1-ene (b) 1,2,3,4-tetramethyl-2-cyclobutene

(c) 1,2,3,4-tetramethylene cyclobutane (d) None of the above.

41. The IUPAC name of given structure

Cl HOOC

HOOC Cl is -

(a) Dichloro dicarboxyl biphenyl

(b) 2,2’-dicarboxy diphenyl-6,6’-dichlorine

(c) 6,6’dichlorobiphenyl-2,2’-dicarboxylic acid

(d) None of the above.

42. The correct IUPAC name of the compound C is -

(a) Tetra phenyl methane (b) neophenyl

(c) 3,3-diphenyl dodecane (d) none of these.

43. The IUPAC name of the compound O

OH

is -

(a) Cinnamic acid (b) 2-methyl-prop-2-enoic acid

(c) 2-phenyl-prop-2-enoic acid (d) 3-phenyl-prop-2-enoic acid

44. The IUPAC name of the following compound H

is -

(a) 2-cyclopropyl butane (b) 1-methyl-1-cyclopropyl propane

(c) 2-propyl butane (d) propenyl butane.

45. The compound

HO

has been named in IUPAC as -

(a) 2-hydroxy cyclopentene (b) cyclopent-2-en-1-ol

(c) hydroxy cyclopentene (d) cyclopenten-1-ol

[8]

IUPAC

47. The compound O

O OC H2 5

has been named in IUPAC as -

(a) 2-carbethoxy cyclopentan-1-one (b) 1-oxo-2-carbethoxy cyclopentane

(c) Carbethoxy cyclo pentanone (d) none of these


OH

is -

(a) 2--butanol (b) 2-butyl cyclopropanol

(c) 2-cyclopropanol butane (d) none of these.

50. Give the IUPAC name of the following compound

(a) Octyl benzene (b) Octyl cyclo hexane

(c) 3-cyclohexyl octane (d) 3-phenyl octane.

Answer Key1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20b a c a c c b d d c b a b c d d d d d a

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40d d d b c b b a a a a b d d d d d a a a

41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60c a d a b c a b b d b c b c c b,d d a d b

61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80d b c a c c b d a d a a d b d d b c d c

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100b a d d d c d c d c b c d d a d b c c a

101 102 103 104a c b a

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