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(A) : Teflon has high thermal stability ...

(A) : Teflon has high thermal stability and chemical inertness
(R) : Teflon is a thermoplastic

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the statements provided in the question, we will break down the assertion (A) and the reason (R) step by step. ### Step 1: Understanding the Assertion (A) The assertion states: "Teflon has high thermal stability and chemical inertness." - Teflon, chemically known as polytetrafluoroethylene (PTFE), is known for its exceptional thermal stability. This means it can withstand high temperatures without degrading. - Additionally, Teflon is chemically inert, meaning it does not react easily with other chemicals. This property makes it useful in various applications, especially in environments where it is exposed to reactive substances. ### Step 2: Understanding the Reason (R) The reason states: "Teflon is a thermoplastic." - Thermoplastics are materials that become pliable or moldable upon heating and solidify upon cooling. Teflon is indeed classified as a thermoplastic because it can be reshaped when heated. - However, it is important to note that while Teflon is a thermoplastic, its high thermal stability and chemical inertness are not directly due to this classification. ### Step 3: Evaluating the Relationship between A and R - Both the assertion (A) and the reason (R) are true statements. Teflon does have high thermal stability and chemical inertness, and it is a thermoplastic. - However, the reason (R) does not correctly explain the assertion (A). The high thermal stability and chemical inertness of Teflon are due to its strong carbon-fluorine bonds and molecular structure, not because it is a thermoplastic. ### Conclusion - Therefore, we conclude that both statements are true, but the reason is not the correct explanation for the assertion. ### Final Answer Both A and R are true, but R is not the correct explanation of A. ---
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