MCQ
Choose the correct statement regarding the formation of carbocations $A$ and $B$ given :-

${C{H_3} - C{H_2} - CH = C{H_2} + HBr\,\to \,CH _{3}- CH _{2}- CH _{2}- C^{+}H _{2}+ Br ^{-}} _{"A"}$

${C{H_3} - C{H_2} - CH = C{H_2} + HBr\, \to \,CH _{3}- CH _{2}- C^{+}H - CH _{3}+ Br ^{-}}_{"B"}$

  • Carbocation $B$ is more stable and formed relatively at faster rate
  • B
    Carbocation $A$ is more stable and formed relatively at slow rate
  • C
    Carbocation $B$ is more stable and formed relatively at slow rate
  • D
    Carbocation $A$ is more stable and formed relatively at faster rate

Answer

Correct option: A.
Carbocation $B$ is more stable and formed relatively at faster rate
a
This is more stable due to secondary cation formation and formed with faster rate due to low activation energy.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free