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Q.
The increase in stability and decrease in energy of aromatic compounds is due to:
Hydrocarbons
Solution:
According to Huckle's rule aromatic compounds are cyclic planar compounds having $4 n +2$ pi delocalised electrons. A compound with delocalized electrons is more stable than it would be if all of its electrons were localized. The extra stability a compound gains from having delocalized electrons is called delocalization energy or resonance energy.