Statement-1: Methanoic acid reduces mercuric chloride to mercurous chloride on heating while ethanoic acid does not.
and
Statement-2: Methanoic acid is stronger acid then ethanoic acid.

Options

A. Statement-1 is True, Statement-2 is true, statement-2 is a correct explanation for statement-5
B. Statement -1 is true, Statement-2 is true, statement-2 is not a correct explanation for statement-5
C. Statement-1 is true, statement -2 is False
D. Statement-1 is False, Statement-2 is true

Answer

To solve the given question, we need to analyze both statements provided and determine their validity.

### Step 1: Analyze Statement 1
**Statement 1**: Methanoic acid reduces mercuric chloride to mercurous chloride on heating while ethanoic acid does not.

- **Methanoic acid (HCOOH)** can reduce mercuric chloride (HgCl2) to mercurous chloride (Hg2Cl2) when heated. The reaction can be represented as:
\[ 2 \text{HCOOH} + \text{HgCl}_2 \rightarrow \text{Hg}_2\text{Cl}_2 + 2 \text{CO}_2 + 2 \text{HCl} \]
In this reaction, mercury is reduced from +2 oxidation state in HgCl2 to +1 oxidation state in Hg2Cl2.

- **Ethanoic acid (CH3COOH)** does not exhibit this reducing behavior under similar conditions. Therefore, it does not reduce mercuric chloride.

**Conclusion for Statement 1**: This statement is **true**.

### Step 2: Analyze Statement 2
**Statement 2**: Methanoic acid is a stronger acid than ethanoic acid.

- To compare the acidity of methanoic acid and ethanoic acid, we look at their conjugate bases:
- When methanoic acid loses a proton, it forms the conjugate base HCOO⁻.
- When ethanoic acid loses a proton, it forms the conjugate base CH3COO⁻.

- The stability of the conjugate base is crucial for determining the strength of the acid. The presence of the methyl group (CH3) in ethanoic acid exerts a +I (inductive) effect, which destabilizes the negative charge on the conjugate base CH3COO⁻. In contrast, HCOO⁻ does not have such an electron-donating group, making it more stable.

**Conclusion for Statement 2**: This statement is also **true**.

### Step 3: Determine the Relationship Between the Statements
Now, we need to evaluate whether Statement 2 explains Statement 1.

- While both statements are true, the strength of methanoic acid as an acid does not directly explain its ability to reduce mercuric chloride. The reducing property is more related to the structure and reactivity of methanoic acid rather than its acidity.

### Final Conclusion
Both statements are true, but Statement 2 does not provide a correct explanation for Statement 1.

**Correct Answer**: **Option B**: Statement 1 is true, Statement 2 is true, Statement 2 is not a correct explanation for Statement 1.

---