Question

What happens when chlorine gas is passed through calcium hydroxide?

Answer 1

chemical reaction takes place of chlorine gas is passed through calcium hydroxide

Answer 2

Explanation:

When chlorine gas is passed through calcium hydroxide then ther will be formation of calcium hypochlorite, calcium chloride and water.

The chemical reaction equation is as follows.

  $2Ca(OH)_{2} + 2Cl_{2}(g) \rightarrow Ca(OCl)_{2} + CaCl_{2} + 2H_{2}O$

Calcium hypochlorite $(Ca(OCl)_{2})$ is also known as bleaching agent. During this reaction energy is released in the form of heat as it is an exothermic reaction.