Assertion (A) : Silicones are hdyreopbhobic in nature .
Reason (R) : `Si -O - Si` likages are moisture sensitive .

Options

A. If both (A) and (R) are correct and (R) is correct explanation of (A)
B. If both (A) and (R) are correct and (R) is not 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 assertion and reason question regarding silicones, let's break it down step by step.

### Step 1: Understand the Assertion
The assertion states that "Silicones are hydrophobic in nature."
- **Explanation**: Silicones are synthetic polymers made up of silicon and oxygen, often with organic groups attached. Due to their structure, they do not interact well with water, making them hydrophobic (water-repelling).

### Step 2: Understand the Reason
The reason states that "Si-O-Si linkages are moisture sensitive."
- **Explanation**: Si-O-Si linkages in silicones are generally stable and resistant to moisture. They do not easily break down in the presence of water, which contradicts the assertion that they are moisture sensitive.

### Step 3: Evaluate the Assertion and Reason
- The assertion is **true**: Silicones are indeed hydrophobic.
- The reason is **false**: Si-O-Si linkages are stable and not moisture sensitive.

### Step 4: Conclusion
Since the assertion is true and the reason is false, the correct conclusion is that the assertion is correct, but the reason is incorrect.

### Final Answer
The correct option is that the assertion is true, but the reason is false.

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