Statement-1 : 0.20 M solution of NaCN is more basic than 0.20 M solution of NaF.
Statement-2 :0.20 M solution of NaCN is more basic than 0.20 M solution of `CH_3COONa`

Options

A. Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1
B. Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation for Statement-1
C. Statement-1 is True, Statement-2 is False.
D. Statement-1 is False, Statement-2 is True.

Explanation

To solve the question, we need to analyze both statements regarding the basicity of the solutions of sodium cyanide (NaCN), sodium fluoride (NaF), and sodium acetate (CH₃COONa).

### Step 1: Analyze Statement 1
- **Statement 1** claims that a 0.20 M solution of NaCN is more basic than a 0.20 M solution of NaF.
- **Reasoning**:
- Both NaCN and NaF are salts that dissociate in water to give Na⁺ ions and their respective anions (CN⁻ and F⁻).
- The basicity of a solution is determined by the strength of the conjugate base.
- CN⁻ is the conjugate base of HCN, while F⁻ is the conjugate base of HF.
- The acid dissociation constant (Kₐ) of HCN is greater than that of HF (since HF is a weak acid and HCN is even weaker), which means that CN⁻ is a stronger base than F⁻.
- **Conclusion**: Therefore, 0.20 M NaCN is indeed more basic than 0.20 M NaF. **Statement 1 is true.**

### Step 2: Analyze Statement 2
- **Statement 2** claims that a 0.20 M solution of NaCN is more basic than a 0.20 M solution of CH₃COONa.
- **Reasoning**:
- Again, both NaCN and CH₃COONa dissociate in water to give Na⁺ ions and their respective anions (CN⁻ and CH₃COO⁻).
- The basicity comparison now involves CN⁻ and CH₃COO⁻.
- CN⁻ is a stronger base than CH₃COO⁻ because CH₃COO⁻ is the conjugate base of acetic acid (CH₃COOH), which is a weak acid, but HCN is even weaker than acetic acid.
- Thus, CN⁻ can accept protons more readily than CH₃COO⁻ can, indicating that NaCN is more basic than CH₃COONa.
- **Conclusion**: Therefore, 0.20 M NaCN is more basic than 0.20 M CH₃COONa. **Statement 2 is true.**

### Step 3: Determine the Relationship Between the Statements
- Both statements are true, but they refer to different comparisons.
- Statement 2 does not provide an explanation for Statement 1, as they are independent comparisons of different salts.

### Final Answer
- The correct option is **B**: Statement 1 is true, Statement 2 is true, but Statement 2 is not a correct explanation for Statement 1.