Question

What happens when chlorine is passed over dry slaked lime at 313K?
Write chemical equation of the reaction involved and state two uses of
the product obtained.

Answer 1

Hi,

Here is your answer.

Chlorine reacts with dry slaked lime to give bleaching powder.

2Ca(OH)₂+2Cl₂→Ca(OCl)₂+CaCl₂+2H₂O

Some uses of bleaching powder:

1. Used as a disinfectant to purify water.

2. Used in textile industry

3. Used in laundries to bleach clothes

4. For bleaching wood pulp

Note:

• The composition of bleaching powder is Ca(OCl)₂.CaCl₂.Ca(OH)₂.2H₂O

Hope this helps you.