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The property exhibited by concentrated sulphuric acid when it is used to prepare hydrogen chloride gas from potassium chloride: [1] (a) Dehydrating…
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The salt formed when concentrated sulphuric acid reacts with KNO3 above 200°C: (a) K2SO4 (b) K2SO3 (c) KHSO4 (d) KHSO3
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The nitrate which on thermal decomposition leaves behind a residue which is yellow when hot and white when cold: (a) Lead nitrate…
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In the laboratory preparation, HCl gas is dried by passing through: (a) Dilute nitric acid (b) Concentrated sulphuric acid (c) Dilute sulphuric…
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An example of a cyclic organic compound is: (a) Propene (b) Pentene (c) Butene (d) Benzene
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The metallic hydroxide which forms a deep inky blue solution with excess ammonium hydroxide solution is: (a) Fe(OH)2 (b) Cu(OH)2 (c) Ca(OH)2…
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Which of the following reactions takes place at the anode during the electroplating of an article with silver? (a) Ag − 1e−…
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The vapour density of CH₃OH is …………… (At. Wt. C=12, H=1, O=16) (a) 32 (b) 18 (c) 16 (d) 34
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The compound that is not an ore of aluminium: (a) Cryolite (b) Corundum (c) Fluorspar (d) Bauxite
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An element with the largest atomic radius among the following is: (a) Carbon (b) Nitrogen (c) Lithium (d) Beryllium
