Which of the following is false for `Hg`?

Options

A. It can evolve hydrogen from`H_2S`
B. It is metal
C. It has high specific heat
D. It is less reactive than hydrogen

Explanation

To determine which statement about mercury (Hg) is false, we will analyze each option provided in the question.

### Step-by-Step Solution:

1. **Identify the Properties of Mercury (Hg)**:
- Mercury is a metal and is classified as a d-block element.
- It has unique properties, including a high specific heat capacity.
- Mercury is known to be less reactive than hydrogen.

2. **Evaluate Each Option**:
- **Option 1**: "It can evolve hydrogen from H2S."
- This statement is **false**. Mercury does not react with hydrogen sulfide (H2S) to evolve hydrogen gas. Instead, it remains unreactive in this context.
- **Option 2**: "It is a metal."
- This statement is **true**. Mercury is indeed a metal.
- **Option 3**: "It has specific heat."
- This statement is **true**. Mercury has a high specific heat capacity.
- **Option 4**: "It is less active than hydrogen."
- This statement is **true**. Mercury is less reactive than hydrogen.

3. **Conclusion**:
- The only false statement among the options is that mercury can evolve hydrogen from H2S. Therefore, the answer to the question is that the first option is false.

### Final Answer:
The false statement about mercury (Hg) is: "It can evolve hydrogen from H2S."

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