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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Dinesh khalmaniya 1
option D
I and III are aromatic while II is antiaromatic
more the aromatic rings, less is the aromaticity
this is known as annelation effect
so I is more aromatic i.e., more stable than III and II is least due to antiaromaticity
check this video for annelation effect https://youtu.be/4G51MOznJnU
got it?
got it?