`X_(2)` is a greenish yellow gas with pungent offensive smell used in purification of water. It partially dissolves in `H_(2)O` to give a solution which turns blue litmus red. When `X_(2)` is passed through NaBr solution, `Br_(2)` is obtained.
What are the products obtained when `X_(2)` reacts with `H_(2)O` ? Write chemical equation.

Explanation

To solve the question, we need to identify the gas \(X_2\) and determine the products formed when it reacts with water.

### Step-by-Step Solution:

1. **Identify the gas \(X_2\)**:
- The description states that \(X_2\) is a greenish-yellow gas with a pungent smell and is used in the purification of water. This is characteristic of chlorine gas (\(Cl_2\)).

2. **Determine the reaction of \(X_2\) with water**:
...