Hydrochloric acid reacts with a metal X to form a gas Y, which burns with a 'pop' sound. Sodium hydroxide solution also reacts with same metal X to form same gas Y.
Which the chemical equation of reaction of metal X with NaOH solution

Explanation

To solve the problem, we need to determine the chemical equation for the reaction of metal X with sodium hydroxide (NaOH), given that it produces the same gas Y that is formed when metal X reacts with hydrochloric acid (HCl). The gas Y is identified as hydrogen gas (H₂), which burns with a 'pop' sound.

### Step-by-Step Solution:

1. **Identify Metal X**:
- From the information given, we know that metal X reacts with both hydrochloric acid and sodium hydroxide to produce hydrogen gas (H₂). A common metal that reacts with both acids and bases to produce hydrogen gas is zinc (Zn).

2. **Write the Reaction with Sodium Hydroxide**:
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