Question:
An ' Assertion' and a 'Reason' are given below. Choose the correct answer from the following options.
Assertion (A) : Vinyl halides do not undergo nucleophilic substitution easily.
Reason (R) : Even though the intermediate carbocation is stabilized by loosely held
$\pi$-electrons, the cleavage is difficult becuase of strong bonding.
Correct Option: , 4
Solution: