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INORGANIC PAPERQ.1 Reactions of aluminium with 1. O2 3. Cl2 5. Mn3O4 7. H2SO4(Dil.) 9. HNO3 11. AlCl3 Q.2 Reactions of Al(OH)3 with 1. Acid 2. NaOH 3. Heating Below 450C 4. Heating above 450C Q.3 Q.4 Q.5 Q.6 Q.7 Q.8 Q.9 Q.10 Q.11 Q.12 Q.13 Q.14 Q.15 Q.16 Q.17 Q.18 Q.19 Q.20 Q.21 Q.22 Q.23 Q.24 2. N2 4. Cr2O3 6. HCl

CHEMISTRY

IIT-JEE

P. JOY

8. H2SO4 (Conc.) 10. NaOH

What is the general formula of alum. How many water molecules act as ligands about mono and trivalent metal cations. Which unipositive cations do form alum. Which tripositive cations do form alum. How do structures of all alums differ. Which alkali metal cation does not form alum. What happens when alums are heated. What are the major uses of alum. What is the nature of aqueous solution of alums. How are alums prepared. What are pseudo alums. Are pseudo alums isomorphous to alums. What is feather alum or hair salt. How can you prove that Al(OH)3 is amphoteric in nature. How Al(OH)3 ppt is different than Zn(OH)2 ppt How Al2Cl6 is prepared. How Al2O3 can be converted into Al2Cl6 In which conditions does Al2Cl6 exist. What happens when Al2Cl6 dimer is added to water. Are the bonding states of Al2Cl6 in vapour phase and in aqueous phase are different. What is the nature of AlCl3 in aqueous state. Does AlCl3 on heating melts.

VISION KOTA, 608-A, TALWANDI KOTA (RAJ.) Ph. 0744 - 6450883, 2405510E D U C A T I O N S

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INORGANIC PAPERQ.25 Q.26 Q.27 Q.28 Q.29 Q.30 Q.31 Q.32 Q.33 Q.34 Q.35 Q.36 Q.37 Q.38 Q.39 Q.40 Q.41 Q.42 Q.43 Q.44 Q.45 Q.46 Q.47 Q.48 Q.49 Q.50 Q.51 Q.52 Q.53 Q.54 Q.55 Q.56 Q.57 Q.58 Why is it difficult keep AlCl3 dry Comment on stability of AlCl

CHEMISTRY

IIT-JEE

P. JOY

What happens when AlCl3 reacted with Cl What happens when Al2Cl6 is reacted with LiH

-ions

Which is the most stable compound of aluminium. What are the different forms of alumina. What is corundum. What is thermite reaction. What happens when AlCl3 vapours are passed over fused Al2O3 at 1000C. Which form of alumina is corundum. Which form of alumina is acid soluble. Why 'C' shows highest properties of catenation ? Which element of fourth group donot show allotropy ? Which allotrope of carbon is thermodynamically more stable ? Which of two has a dipole moment CO & CO2 ? Which element of group IV does not show allotropy ? Why graphite is good conductor of electricity ? Which is thermodynamically most stable ? Graphite, Diamond or fullerene ? Which element occurs in both very hard and very soft form ? In which form does silicon show its allotropy ? What are three crystalline modifications of tin ? How various allotropes of tin are related to temperature ? What is tin disease, tin pest or tin plague ? What is tin cry ? Which element of IV group has maximum number of Isotopes ? Which allotrope of carbon is insoluble solvent ? What are the oxides of carbon ? Which acid anhydride is CO2 ? Which acid anhydride is CO ? How fullerence was originally prepared ? Can fullerence be prepared by evaporation of graphite by electric arc ? How many 'C' atoms are there normally in fullerence ? What is the colour of C60 in toluene ? What is the colour of C70 in Toluene ?

VISION KOTA, 608-A, TALWANDI KOTA (RAJ.) Ph. 0744 - 6450883, 2405510E D U C A T I O N S

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INORGANIC PAPERQ.59 Q.60 Q.61 Q.62 Q.63 Q.64 Q.65 Q.66 Q.67 Q.68 Q.69 Q.70 Q.71 Q.72 Q.73 Q.74 Q.75 Q.76 Q.77 Q.78 Q.79 Q.80 Q.81 Q.82 Q.83 Q.84 Q.85 What is the shape of C60 ?

CHEMISTRY

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Which acid anhydride is carbon sesquioxide C3O2 ? Which oxide of IV group is not solid ? Which monoxide of IV group does not exist ? Which monoxide of IV group is neutral ? What is the nature of IV group monoxides ? Which IV group oxides are network solids ? Why bicarbonates are alkaline in nature although they has H+ ? How calcium cyanamide can be prepared from CaC2 ? What happens when calcium cyanamide is hydrolysed ? What happens when calcium cyanamide is heated with Coke & NaCl What happens when K4Fe(CN)6 is heated strongly ? What happens when KCN & dil. H2SO4 reacts ? What is the nature of aqueous solution of KCN ? What happens when HCN is oxidised by O2, Ag, Cu2+ ? Why (CN)2 is pseudohalide ? Why CO2 is molecule but SiO2 is 3D network solid ? What are the nature of CO2, SiO2, GeO2, SnO2, PbO2 ? What happens when Pb(NO3)2 is strongly heated ? Which dioxide of nonmetal C, S, N or Cl does not act as reducing agent ? What happens when graphite is heated with KMnO4 ? What is the general formula of organosilicone ? What happens when dialkyldichloro silanes of diaryl dichlorosilanes are subjected to hydrolysis ? What is the hybridisation state of Si in SiO2 ? What is the purest form of silicon ? What happens when SiO2 is reacted (heated) with alkalis and alkali metal carbonates ? What happens when SiO2 is reacted with following ? (a) KOH (b) CaCO3 (c) KNO3 (d) HF (e) Coke

Q.86 Q.87 Q.88 Q.89 Q.90 Q.91

What type of glass is K2O.PbO.4SiO2 ? What is the definition of glass ? Why HF acid is stored in plastic bottles and not glass bottles ? Which compound is formed when glass reacts with HF ? What is the formula of soda glass ? What is the formula of water glass

VISION KOTA, 608-A, TALWANDI KOTA (RAJ.) Ph. 0744 - 6450883, 2405510E D U C A T I O N S

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INORGANIC PAPERQ.92 Q.93 Q.94 Q.95 Q.96 Q.97 Q.98 Q.99 Q.100 Q.101 Q.102 Q.103 Q.104 Q.105 Q.106 Q.107 Q.108 Q.109 Q.110 Q.111 Q.112 Q.113 Q.114 Q.115 Q.116 Q.117 Q.118 Q.119 Q.120 Q.121 Q.122 Q.123 Q.124 Q.125 What is silica Garden ?

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P. JOY

What are silanes and germanes ? What are their general formula. What happens when mixture of silane and H2 is bubbled through water ? What happens when Si is fused with NaOH in air ? Which acid is used for etching glass ? How silanes are different than alkanes ? KNO3 on heating produce KNO2 and O2 but what happens when KNO3 is heated with SiO2 ? Name an acid which dissolves silica ? What are corundum and carborundum ? What pseudo solids ? Which allotrope of Si is isomorphous with carbon ? What is Na2SiO3. CaSiO3.4SiO2 ? What do you call K2O.CaO.4SiO2 ? Which type of anions are present in pyrex glass ? Which type of glass are prisms and lenses are made up of ? What is Crookes glass ? What is its speciality ? Which metal compound is present in it ? Which type of glass has lane thermal expansion ? How borosilicate glass are obtained ? Why trimethyl amine is pyramidal but trisilyl amine is planar ? Which of two is more basic N(CH3)3 or N(SiH3)3 ? How the name silicone is derived for the polymer R2SiO ? Why CO2 is a gas while SiO2 is a solid ? Why CCl4 does not hydrolyse but SiCl4 ? How tin is purified ? Which oxide of tin (SnO, SnO2) is/are amphoteric ? Why heating of SnC2O4 does not yield SnO instead of SnO2 ? What happens when SnO2 is reacted with (i) H2SO4 (ii) NaOH What happens when SnCl2.2H2O crystals are heated ? Which of the two SnCl2 or SnCl4 is a liq. at room temperature ? What is butter of Sn ? What is its major use. What are the addition compounds of SnCl2 & NH3 ? What is the double salt of SnCl4 with NH3 ? How calamel is produced by SnCl2 ? Which tin compound is used in tooth paste to help tooth decay ?

VISION KOTA, 608-A, TALWANDI KOTA (RAJ.) Ph. 0744 - 6450883, 2405510E D U C A T I O N S

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INORGANIC PAPERQ.126 Q.127 Q.128 Q.129 Q.130 Q.131 Q.132 Q.133 Q.134 Q.135 Q.136 Q.137 Q.138 Q.139 Q.140

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Which property of tin makes it useful for tinning of utensils ? What happens when AuCl3 is treated with SnCl2 ? How PURPLE OF CASIUS is formed ? What happens when butter of tin is hydrolysed with excess of water ? What happens when tin metal is reacted with conc. HNO3 ? Which tin halide out of SnCl4, SnBr4, SnI4 is coloured ? How Tin (II) fluoride is obtained ? Why Pb715 has higher I.E. than Sn707 ? What are various oxides of Pb ? Why do PbCl4 acts as strong oxidising agent ? SiF62 exist but not CF62 explain why ? What is the order of ease of catenation ? How many allotropes of Sn exist ? Why PbCl2 is ionic where is PbCl4 is covalent. How do following properties vary ? (a) Atomic radii (b) Melting point and boiling point (c) Density (d) I.E. (e) O.S.

Q.141 Q.142 Q.143 Q.144 Q.145 Q.146 Q.147 Q.148 Q.149 Q.150 Q.151 Q.152 Q.153 Q.154 Q.155E D U C A T I O N S

Why Group V elements have much higher I.E. than group IV elements. Which two elements of Group V are metalloids ? Why Bi has low melting point ? What are the important oxidation states exhibited by Group V elements ? Give an example of each of compound in which 'N' is having oxidation states 3 to +5 Why Group V elements have poor catenation property ? What is the structure of hydrazoic acid ? Which elements of Group V do not show allotropy ? What are the allotropes of phosphorous ? What are the allotropes of Arsenic ? What are the allotropes of Antimony ? Which element of group V has tendency to form p p bond ? Why N2 is less reactive than other members of its family ? What is the formula of elemental state of group V elements. What type of bond is present in POX3.VISION KOTA, 608-A, TALWANDI KOTA (RAJ.) Ph. 0744 - 6450883, 2405510PAGE # 5

INORGANIC PAPERQ.156 Q.157 Q.158 Q.159 Q.160 Q.161 Q.162 Q.163 Q.164 Q.165 Q.166 Q.167 Q.168 Q.169 Q.170 Q.171 Q.172 Q.173 Q.174 Q.175 Q.176 Q.177 Q.178 Q.179 Q.180 Q.181

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What happens when Ca3N2 and Ca3P2 are added to water ? What happens when Zn3As2, Zn3Sb2, Zn3Bi2 are added to water ? Which compound is formed when NH3 gas is passed into NaOCl solution. Arrange following hydrides in increasing bond angle NH3, PH3, AsH3, SbH3 Arrange following hydrides in the increasing order of their thermal stability NH3, PH3, AsH3,