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 In average composition of a good sample of cement the percentage of silica is. 18.5% 20.5% 22.5% 24.5%
2 Sodium silicate is used In the paint industry For fixing labels to glass In a soap industry All above
3 Sodium silicate is ued In fire proofing of wood and textiles As a preservative of eggs As a furniture polish All above
4 Is a chain silicate Olivine Tremolite Beryl Zeolite
5 Hemimorphite is an example of. Orthosilicate Pyrosilicate Cyclic silicate Meta silicate
6 Are used as water repellents Carbides Silicon Silicones Silicates
7 Carbides because of their hardness are Ionic carbides Interstitial carbides covalent carbides Any of above
8 Types of carides Ionic carides Covalent carbides Interstitial carbides All above
9 The rising world temperature will have serious effect on. Agriculture Animal production Human being All above
10 During the last two centuries, the atmospheric CO2 contents are increased by 15% 25% 35% 50%
11 Green houses are responsible for keeping our plant warm and sustaining life on the earth. CO2 & water vapours CO2 & CFC CO2 & H2O CO2 & CH4
12 The gases that are responsible for green house effect are. CO2 & CH4 CFC N2O All above
13 Tetra halides do not undergo hydrolysis C Si Sn Pb
14 Has maximum property of catenation. C Si Sn Pb
15 Allotropic form of tin White tin Grey tin Rhomic tin All above
16 Most electronegative element is. C Si Pb Sn
17 Shows a regular increase on moving down the group form carbon to lead Atomic volume Atomic radius Density All above
18 Ionization potential of carbon is. 11.2 7.8 8.1 7.3
19 The penultimate shell of carbon contains electrons. s2 s2p6 s2p6d10 s2p6d8
20 Main constituent of all inorganic matter Carbon Silicon Tin Lead
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