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PPSC Chemistry Full Book Test
| Sr. # | Questions | Answers Choice |
|---|---|---|
| 1 | Reacts violently with water | AlH3 AlCl3 Lia IH4 Al2Cl6 |
| 2 | Al Cl3 is used in | Manufacturing of petrol In borax bead test Prezervation of food All above |
| 3 | Aluminium halides is. | White crystalline solid Hygroscopic Sublimes at 180<sup> o</sup>C All above |
| 4 | Sodium Tetra borate is used | As alkaline buffer in dying & bleaching process In manufacture of opticl glass in enameling and making glaze All above |
| 5 | The formula of borax glass is. | Na2B4O7 10H2O Na2B4O7 5H2O Na B4 O7 None of above |
| 6 | Borax exist in the form | Ordinary borax Octahdral borax Borax glass All above |
| 7 | Boric Acid is used | In manufacture of pottery glaze In medicine as an antiseptic In tanning industry All above |
| 8 | The formula of Tetraboric acid is. | H2BO3 HBO2 H2B4O7 H6B4O9 |
| 9 | The formula of Borax is. | Na2B4O7 6H2O Na2B4O7 8H2O Na2B4O7 10H2O Na2B4O7 12H2O |
| 10 | Dibornae is used | Fro high energy fuel For welding torches as reducing agent All above |
| 11 | Is an instate able colourles gas with a sticky sweet odor and is extremely toxic. | B2 H6 B4 H10 B3 H9 B6 H10 |
| 12 | The formula of hexa borane is. | B4H10 B6 H10 B5 H9 B8 H12 |
| 13 | Magnalium is alloy of Aluminium which is used in | Scientific apparatus Aircraft parts Rail road care Boat machinery |
| 14 | Aluminium is used for. | Making ultensile & framea Making alloys Reducing agent All above |
| 15 | 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 |
| 16 | The purification of Bauxite can be carried out. | Baeyer's process Hall's process Serpek's process Any of above |
| 17 | The formula of Bauxite is. | Al2O3 Al2 O3. 2H2O AL2O3, H2O Na3AIF6 |
| 18 | Sulphate ores of aluminium | Alumite Cryolite Fekdsper Kaolin |
| 19 | Oxides ores of Aluminium | Corundum Bauxite Diaspore All above |
| 20 | Both the elements shows allotropy | B & Ai B & Si Al & Si Any of above |
| 21 | Both the elements are typical non metals. | B & Ai B & Si Al & Si Any of above |
| 22 | Form electron deficient compounds | B AI Both B and AI None of above |
| 23 | Which of the following have +3 oxidation states. | B & AI In & TI B & In AI & TI |
| 24 | Give violet colour to flame |
Gallium indium Thallium Aluminium |
| 25 | The valence shell electronic configuration of group III A is. | ns1 p2 ns2 p1 ns3p2 ns2p2 |
| 26 | All the member of group III A are metals except. | B Ai Ga In |
| 27 | The penultimate shells have pscudo inert gas type configuration. | Ga In TI All above |
| 28 | Group III A of the periodic table consist of elemetns. | 3 4 5 6 |
| 29 | Bryllium salts on hydrolysis give. | Basic solutions Acidic solutions Neutral solutions Amphoteric solutions. |
| 30 | Ca H2 on reaction with water liberates | H2 O2 Botha of these None of these |
