1.

Assertion: Neoprene can be further hardened by heating in presence of sulphur. Reason : Neoprene contains allylic double bonds which help in introducing sulphur bridges between different polymer chains.

Answer»

If both assertion and reason are TRUE , and reason is the true EXPLANATION of the assertion.
If both assertion and reason are true , but reason is not the true explanation of the assertion.
If assertion is true , but reason is FALSE.
If both assertion and reason are false.

Answer :A


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