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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Dinesh khalmaniya 1
more the resonance more is the stability
in option A, resonance is with two double bonds, in option B, it is with one db while in option it is woth three double bonds
in option d there is no resonance
so order of stability will be C> A>B>D
got it??
if any doubt you can ask me??