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Assertion: In vulcanisation of rubber, sulphur cross links are introduced Reason: Vulcanisation is a free radical initiated chian reaction.

Answer»

If both assertion and reason are true and the reason is the correct explanation of the assertion.
If both assertion and reason are true but reason is not the CORRET explanation of the assertion.
if assertion is true but reason is FALSE
if the assertion and reason both are false

Solution :Vulcanisation is a process of teating natural rubber with SULPHUR or some compounds of sulphur under HEAT so as to modify its properties. This cross-linking give mechanical strength to the rubber.


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