PPSC Chemistry Part III Inorganic Chemistry Online Test With Answers

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PPSC Chemistry Part III Inorganic Chemistry Online Test

Sr. # Questions Answers Choice
1 Is an instate able colourles gas with a sticky sweet odor and is extremely toxic. B2 H6 B4 H10 B3 H9 B6 H10
2 The formula of hexa borane is. B4H10 B6 H10 B5 H9 B8 H12
3 Magnalium is alloy of Aluminium which is used in Scientific apparatus Aircraft parts Rail road care Boat machinery
4 Aluminium is used for. Making ultensile & framea Making alloys Reducing agent All above
5 In the purification of bauxite , the ore is fused with sodium carbonate in the process Baeyer's process Hall's process Serpeck's process Any of above
6 The purification of Bauxite can be carried out. Baeyer's process Hall's process Serpek's process Any of above
7 The formula of Bauxite is. Al2O3 Al2 O3. 2H2O AL2O3, H2O Na3AIF6
8 Sulphate ores of aluminium Alumite Cryolite Fekdsper Kaolin
9 Oxides ores of Aluminium Corundum Bauxite Diaspore All above
10 Both the elements shows allotropy B & Ai B & Si Al & Si Any of above
11 Both the elements are typical non metals. B & Ai B & Si Al & Si Any of above
12 Form electron deficient compounds B AI Both B and AI None of above
13 Which of the following have +3 oxidation states. B & AI In & TI B & In AI & TI
14
Give violet colour to flame
 Gallium indium Thallium Aluminium
15 The valence shell electronic configuration of group III A is. ns1 p2 ns2 p1 ns3p2 ns2p2
16 All the member of group III A are metals except. B Ai Ga In
17 The penultimate shells have pscudo inert gas type configuration. Ga In TI All above
18 Group III A of the periodic table consist of elemetns. 3 4 5 6
19 Bryllium salts on hydrolysis give. Basic solutions Acidic solutions Neutral solutions Amphoteric solutions.
20 Ca H2 on reaction with water liberates H2 O2 Botha of these None of these
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