Write the chemical equation to show that chlorine gas can be obtained from bleaching powder.

Explanation

To derive the chemical equation showing that chlorine gas can be obtained from bleaching powder, we can follow these steps:

### Step 1: Identify the components
Bleaching powder is chemically known as calcium oxychloride, with the formula \( Ca(OCl)_2 \).

### Step 2: Write the reaction
When bleaching powder reacts with an acid, such as sulfuric acid (\( H_2SO_4 \)), it releases chlorine gas. The reaction can be represented as follows:

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