Chemistry - GOC Question with Solution | TestHub

Question Explanation:

The question asks to select the option that correctly arranges the provided chemical intermediates (carbocations, carbanions, or free radicals) in decreasing order of stability. Concept :

This question is based on Stability of Intermediates, Aromaticity, Resonance, Inductive Effect, Hyperconjugation

Solution :

The order given in Option 1 is incorrect because the Methoxy-methyl carbocation is more stable than the tert-Butyl carbocation.

The order given in Option 2 is incorrect because the correct stability order of given Alkenes is (iii) $>$ (i) > (II)

The order given in Option 3 is incorrect because the p-Bromobenzyl carbanion is more stable than (i) in which negative charge is localised.

Option 4 is Correct. $3^{\circ }$ Allylic $>$ Allylic $>$ Ethyl $\left(1^{\circ }\right)>$ Vinyl.