How is bleaching powder prepared ? Why does bleaching powder :
Smell strongly of chlorine ?

Explanation

### Step-by-Step Solution

**Step 1: Preparation of Bleaching Powder**
Bleaching powder is prepared by the reaction of chlorine gas with dry slaked lime (calcium hydroxide). The chemical reaction can be represented as follows:

\[ \text{Ca(OH)}_2 + \text{Cl}_2 \rightarrow \text{Ca(OCl)}_2 + \text{H}_2\text{O} \]

Where:
...