Assertion : The time of vulcanisation and temperature is increased by adding accelerators. Reason : By vulcanising, a material of high tensile strength can be obtained.

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 reson is not the correct explanation of the assertion.

c. if assertion is true but reason is false.

d. if the assertion and reason both are false.

e. If assertion is false but reason is true.

Ans. e