Match the ions given in Column I with their nature-given in Column II.

Column I

Column II

A. 

1. Stable due to resonance

B.  

2. Destabilised due to inductive effect

C. 

3. Stabilised by hyperconjugation.

D.  

4. A secondary carbocation

Codes:

Options:  A   B   C   D 
1.  1,2  2 2  3,4 
2. 1 2,4   3  4
3.  1  4  3  2
4.  4  1  3  2

 
A.(1,2) B.(2) C.(2) D.(3,4)

Column I

Column II

Explanation

A. 

Stable due to resonance

Destabilised due to inductive effect

B. F3-C+

Destabilised due to inductive effect

-/effect of F creates electron deficiency at carbon C+

C. 

Destabilised due to inductive effect

+/effect of CH3 increases electron density at carbon C-

D. CH3-CH-CH3

A secondary carbocation stabilized due to hyperconjugation

C+H is attached to two carbon. It can also be stabilized by hyperconjugation.