1.

A greenish yellow gas reacts with an alkali metal hydroxide to form a halite which can be used in fireworks and safety matches. The gas and halite respectively are    1. Br2 , KBrO3   2. Cl2 , KClO3   3. I2 , NaIO3   4. Cl2 , NaClO3

Answer»

Correct option: 2 Cl2 , KClO3

Explanation:

3Cl2 + 6KOH  5KCl + KClO3 + 3H2O



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