Assertion (A) : Greater the value of K, more is the fraction of initial concentration of reactants converted to products at equilibrium.
Reason (R) : The value of K depends on the initial concentration of reactants.

Options

A. If both (A) and (R) are correct, and (R) is the correct explanation for (A)
B. If both (A) and (R) are correct, but (R) is not the correct explanation of (A)
C. If (A) is correct, but (R) is incorrect
D. If (A) is incorrect, but (R) is correct.

Explanation

To solve the given question, we need to analyze both the Assertion (A) and the Reason (R) provided.

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states: "Greater the value of K, more is the fraction of initial concentration of reactants converted to products at equilibrium."
- The equilibrium constant (K) is defined as the ratio of the concentration of products to the concentration of reactants at equilibrium. A higher value of K indicates that, at equilibrium, the concentration of products is much greater than that of reactants, suggesting that a larger fraction of reactants has been converted to products.

2. **Conclusion about Assertion (A)**:
- Since a higher K value indicates that more reactants are converted to products, we conclude that Assertion (A) is **True**.

3. **Understanding the Reason (R)**:
- The reason states: "The value of K depends on the initial concentration of reactants."
- The equilibrium constant (K) is a property of the reaction at a given temperature and does not depend on the initial concentrations of the reactants or products. It is determined only by the concentrations of the reactants and products at equilibrium.

4. **Conclusion about Reason (R)**:
- Since K does not depend on the initial concentrations of reactants, we conclude that Reason (R) is **False**.

5. **Final Conclusion**:
- Since Assertion (A) is true and Reason (R) is false, the correct answer to the question is that Assertion is correct but Reason is incorrect.

### Final Answer:
- Assertion (A) is True.
- Reason (R) is False.
- Therefore, the correct answer is: **A is correct but R is incorrect.**