Question

The order of stability of the following carbocations:
CH,
HC-CH-CH2; HC-CH-CH2
1
II
IIT​

Answer 1

Answer:

The carbocation 4 is least stable as it is not resonance stabilized. Carbocation 1 is most stable as the delocalisation of positive charge over the ring will not break aromaticity. Carbocation 3 is more stable than carbocation 2 as the extent of delocalisation carbocation 3 is more than that in carbocation 2.

So, the decreasing order of stability of given carbocations is 1>3>2>4.