Question

elements which produces a gas on reaction a gas on reacting with water ​

Answer 1

Answer:

Reactions of alkali metals with water

All the alkali metals react vigorously with cold water. In each reaction, hydrogen gas is given off and the metal hydroxide is produced. The speed and violence of the reaction increases as you go down the group.

Explanation:

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Answer 2

Explanation:

Chlorine reacts with water to produce [O] nessant oxygen.

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