Chemistry - GOC Question with Solution | TestHub
ChemistryGOCRESONANCE AND MESOMERIC EFFECTHard2 minQB
ChemistryHardsingle choice
Arrange the following carbocations in decreasing order of stability : benzyl (I), para-methoxybenzyl (II), meta-methoxybenzyl (III) and para-nitrobenzyl (IV).
(I) 
(II) 
(III) 
(IV) 
Options:
Answer:
B
Solution:
Para donates by +R, so it is more stable than the plain benzyl cation (I). Meta acts only by -I, so (III) is less stable than (I).
withdraws by both -I and -M and destabilises the cation most.
Order : II I III IV.
Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
⏱ 2mℹ️ Source: QB
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