Chemistry - GOC Question with Solution | TestHub

ChemistryGOCRESONANCE AND MESOMERIC EFFECTHard2 minQB
ChemistryHardinteger

x = number of (+M) groups attached to the phenyl ring, so the value of x is :

(a) structure

(b) structure

(c) structure

(d) structure

(e) structure

(f) structure

(g) structure

(h) structure

Answer:
4
Solution:

+M groups donate a lone pair into the ring : OH (a), NH₂ (b), OCH₃ (e) and NHCH₃ (f).

NO₂ (c), COCH₃ (d), SO₃H (g) and CHO (h) pull electrons out of the ring through a π bond to an electronegative atom, so they are -M.

x = 4.

Stream:JEESubject:ChemistryTopic:GOCSubtopic:RESONANCE AND MESOMERIC EFFECT
⏱ 2mℹ️ Source: QB

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