1.

Match the statements in Column A, with those in Column B.Column AColumn B1. A mixture of oxygen and carbon dioxide used for artificial respiration.(a) Manganese dioxide2. A compound which on strong heating yields oxygen gas.(b) Sodium3. The process of coating zinc on the surface of iron to prevent rusting.(c) Carbogen4. A catalyst used in laboratory preparation of oxygen from hydrogen peroxide.(d) Potassium nitrate5. A metal which burns with a golden yellow flame in oxygen.(e) Galvanising

Answer»
Column AColumn B
1. A mixture of oxygen and carbon dioxide used for artificial respiration.(c) Carbogen
2. A compound which on strong heating yields oxygen gas.(d) Potassium nitrate
3. The process of coating zinc on the surface of iron to prevent rusting.(e) Galvanising
4. A catalyst used in laboratory preparation of oxygen from hydrogen peroxide.(a) Manganese dioxide
5. A metal which burns with a golden yellow flame in oxygen.(b) Sodium



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