Assertion (a) : gives and on treatment with hi.
Reason (r): the reaction occurs by sn1 mechanism.
a. Both the Assertion and the Reason are true, and the Reason is the correct explanation for the Assertion.
b. Both the Assertion and the Reason are true, but the Reason is not the correct explanation for the Assertion.
c. The Assertion is true, but the Reason is false.
d. Both the Assertion and the Reason are false.