Statement-1: Diamonds are forever is generally quoted for diamond as rate of conversion of diamond to graphite at room condition is nearly zero.
Statement-2 :At room condition, conversion of diamond into graphite is spontaneous.

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 provided:

**Statement-1:** "Diamonds are forever is generally quoted for diamond as the rate of conversion of diamond to graphite at room condition is nearly zero."

**Statement-2:** "At room condition, conversion of diamond into graphite is spontaneous."

### Step-by-Step Solution:

1. **Understanding Statement-1:**
- Diamonds are known for their durability and stability. The phrase "Diamonds are forever" suggests that diamonds do not easily convert into another form, which is true in practical terms.
- The conversion of diamond to graphite does occur, but at room temperature and pressure, this conversion happens at an extremely slow rate, making it practically negligible. Thus, Statement-1 is correct.

**Hint:** Consider the stability of diamonds and their conversion rate under normal conditions.

2. **Understanding Statement-2:**
- The conversion of diamond to graphite is indeed thermodynamically favorable. This means that if we consider the Gibbs free energy change, the process is spontaneous under standard conditions.
- However, spontaneity does not imply that the process will occur quickly or at a noticeable rate. The activation energy for the conversion is very high, which means that while the conversion is thermodynamically favorable, it does not happen readily at room temperature. Therefore, Statement-2 is also correct.

**Hint:** Remember that spontaneity in thermodynamics refers to the favorability of a reaction, not the speed at which it occurs.

3. **Conclusion:**
- Both statements are correct, but they are not directly related to each other in terms of causation. Statement-1 discusses the practical observation of diamonds' stability, while Statement-2 discusses the thermodynamic favorability of the conversion process.
- Therefore, the correct answer is that both statements are correct, but Statement-2 does not explain Statement-1.

**Final Answer:** Both statements are correct, but Statement-2 does not explain Statement-1.