Which carbocation is least likely to form as | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The stability of a carbocation depends on its ability to achieve a planar $sp^2$ hybridized geometry at the positively charged carbon atom.$A$. Tr

Vedclass · Accepted Answer

Vedclass · Answer

(C) The stability of a carbocation depends on its ability to achieve a planar $sp^2$ hybridized geometry at the positively charged carbon atom.$A$. Triphenylmethyl carbocation is highly stable due to resonance.$B$. Cyclohex$-1-$en$-1-$yl cation is a vinyl cation,which is less stable but can exist.$C$. Bicyclo[$2.2$.$1$]heptan$-1-$yl cation (a bridgehead carbocation) is extremely unstable because the rigid bicyclic structure prevents the positively charged carbon from achieving the required planar $sp^2$ geometry (Bredt's rule).$D$. Vinyl cation $(CH_2 = \mathop C\limits^ + H)$ is also less stable but more feasible than a bridgehead carbocation in a small bicyclic system.Therefore,the bridgehead carbocation is the least likely to form.

List-$I$ (Pair of Compounds)	List-$II$ (Isomerism)
$A$. $n$-propanol and Isopropanol	$(I)$ Metamerism
$B$. Methoxypropane and ethoxyethane	$(II)$ Chain Isomerism
$C$. Propanone and propanal	$(III)$ Position Isomerism
$D$. Neopentane and Isopentane	$(IV)$ Functional Isomerism

Which carbocation is least likely to form as an intermediate?

Similar Questions

Isomers have the same ...........

The most stable canonical structure of the given molecule is:

What is the decreasing order of the inductive effect for the following benzyl/allyl systems (where $R$ is an alkyl group)?

Determine the absolute configurations of the labeled carbons ($a$ and $b$).

Vedclass Test Series

Exam Paper Generator

Online Exam Module