JEE Main202310 Apr 2023Evening ShiftChemistryGeneral Organic ChemistryActual
The decreasing order of hydride affinity for following carbocations is: (a) (2) (3) (4) Choose the correct answer from the options given below:
Options
- AC, A, D, B
- BC, A, B, D
- CA, C, D, B
- DA, C, B, D
Correct answer
B. C, A, B, D
Step-by-step solution
The stability of a carbocation increases with the number of alkyl groups attached to the carbon atom, due to the inductive and hyperconjugation effects of the alkyl groups. The more the number of alkyl groups, the greater is the electron density on the positively charged carbon, and hence the more stable is the carbocation. The above carbocation can be stabilised by resonance and hyperconjugation. The above carbocation stabilised by resonance caused by three benzene rings. This carbocation is more stable than the p