Question

Which of the following statements is not correct ?

• A. Carbocation posses sextet of electrons.
• B. The order of carbocation stability is :
  $\stackrel{+}{C}{H}_3>{\left(C{H}_3\right)}_2\stackrel{+}{C}H>{\left(C{H}_3\right)}_3\stackrel{+}{C}$
• C. Carbocations have trigonal planar shape
• D. Carbocations are formed by heterolytic cleavage

Answer 1

Answer: (B)

The order of stability of carbocations is :
${\left(C{H}_3\right)}_3\stackrel{+}{C}>{\left(C{H}_3\right)}_2\stackrel{+}{C}H>\stackrel{+}{C}{H}_3$
This order can be explained on the basis of hyper conjugation and Inductive effect.