Question

Assertion (A): Silicones are used in surgical and cosmetic plants Reason (R): Silicones have high thermal stability

• (A) and (R) are correct. (R) is the correct explanation of (A)
• (A) and (R) are correct, but (R) is not the correct explanation of (A)
• (A) is correct but (R) is not correct
• (A) is not correct but (R) is correct

Hint:

- Silicones are preferred in medical and cosmetic applications due to their biocompatibility, non-toxicity, and chemical stability.
- Their thermal stability is an additional property but not the main reason for their use in these fields.

Answer 1

The Correct Option is B

Step 1: Understanding Assertion (A) 
- Silicones are widely used in surgical and cosmetic applications due to their biocompatibility, flexibility, and chemical stability. 
- This statement is correct. 

Step 2: Understanding Reason (R) 
- Silicones have high thermal stability because of their strong Si–O bonds, which make them resistant to heat and oxidation. 
- This statement is also correct. 

Step 3: Checking Whether (R) Explains (A) 
- The reason given (R) states that silicones have high thermal stability, but this is not the primary reason why they are used in surgical and cosmetic applications. 
- The main reason for their usage in these applications is their biocompatibility, chemical inertness, and non
-reactivity with body tissues. 
- Since (R) does not directly explain (A), the correct answer is Option (2).