Statement-I: If an aqueous solution of `NaCI` is electrolysed, the product obtained at the cathode is `H_(2)` gas and no Na.
Because Statement-II: Gases are liberated faster than the metals.

Options

A. Statement 1 is ture , Statement 2 is true Statement 2 is correct explanation for Statement 9
B. Statement 1 is true Statement 2 is ture Statement 2 is NOT a correct explantion for Statement 9
C. Statement 1 is true statement 2 is ture
D. Statement 1 is false Statement 2 is true

Answer

To solve the question, we need to analyze both statements regarding the electrolysis of an aqueous solution of NaCl.

### Step-by-Step Solution:

1. **Understanding Electrolysis of NaCl**:
- When an aqueous solution of NaCl is electrolyzed, it dissociates into Na⁺ and Cl⁻ ions. Additionally, water (H₂O) is also present in the solution.

2. **Identifying the Electrolysis Products**:
- At the cathode (negative electrode), reduction occurs. We need to compare the standard reduction potentials of the possible reactions:
- The reduction of Na⁺ to Na:
\[ \text{Na}^+ + e^- \rightarrow \text{Na} \quad \text{(E° = -2.71 V)} \]
- The reduction of water (H₂O) to hydrogen gas (H₂):
\[ 2 \text{H}_2\text{O} + 2e^- \rightarrow \text{H}_2 + 2 \text{OH}^- \quad \text{(E° = 0 V)} \]

3. **Comparing Standard Reduction Potentials**:
- The standard reduction potential for water (0 V) is higher than that for sodium ions (-2.71 V). This indicates that water is reduced preferentially over sodium ions.

4. **Conclusion for Statement-I**:
- Therefore, during the electrolysis of NaCl solution, hydrogen gas (H₂) is produced at the cathode instead of sodium metal (Na). Thus, Statement-I is correct.

5. **Analyzing Statement-II**:
- Statement-II claims that "gases are liberated faster than the metals." While it is true that gases can often be produced more readily than metals during electrolysis, this statement does not provide a relevant reason for why hydrogen gas is produced instead of sodium metal in this scenario.

6. **Conclusion for Statement-II**:
- Since Statement-II does not accurately explain the observation in Statement-I, it is considered false.

### Final Answer:
- Statement-I is true, and Statement-II is false.

### Summary:
- **Correct Answer**: Statement-I is true, Statement-II is false.

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