Name a metal for each case : It displaces hydrogen gas from nitric acid.

Explanation

To answer the question, "Name a metal that displaces hydrogen gas from nitric acid," we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Metal**: We need to find a metal that can displace hydrogen from nitric acid (HNO3).
- **Answer**: Zinc (Zn) is a metal that can displace hydrogen gas from nitric acid.

2. **Write the Reaction**: The chemical reaction between zinc and nitric acid can be written as:
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