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A : Addition of HCN in alkene is a type ...

A : Addition of HCN in alkene is a type of electrophilic substitution reaction.
R : In first step, H3O+ attacks on double bond

A

If both Assertion’ & Reason are true and the reason is the correct explanation of the assertion, then mark'(1).

B

If both Assertion. & Reason are true but the reason is not the correct explanation of the ’ assertion, then mark (2).

C

If Assertion is true statement but Reason is false, then mark (3). .

D

If both Assertion and-Reason are false statements, then mark (4)

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