Question

Which of the following does not undergo
nucleophilic substitution under normal
conditions?
CH3CH2CH2C1
CH3CH2Cl
CH3CI
CH2= CH - Cl​

Answer 1

Answer:

CH2=CH-Cl.

Explanation:

Nucleophillic substitution reaction normally involves breaking of C-X bond.Here, C-Cl bond in CH2=CH-Cl has partial double bond character.That's why it is difficult to break this bond and hence SN reaction is not possible.