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Question
Assertion: Teflon has high thermal stability and chemical inertness.
Reason: Teflon is a thermoplastic.
Options:
A .  If both assertion and reason are true and the reason is the correct explanation of the assertion.
B .  If both assertion and reason are true but reason is not the correct explanation of the assertion.
C .  If the assertion and reason both are false.
D .  If assertion is false but reason is true.
Answer: Option B
:
B
Due to the presence of strongC–Fbondsteflon has high thermal stability and chemical inertness.
And it is true that it is a thermoplastic. It changes shape on heating and retains the shape. It cannot be reshaped on further heating.
So, it is true that it is chemically inert but not because it is a thermoplastic.

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