Question

The electrophilic addition is done at _________ bonds.

(a) 2-2

(b) 3-3

(c) 4-4

(d) 6-6

This question was addressed to me by my college professor while I was bunking the class.

Question is from Fullerenes and their Properties in division Nano Materials of Applied Chemistry

Answer 1

The correct answer is (d) 6-6

To elaborate: The electrophilic addition is done at 6-6 bonds. They reduce the angle strain. This results in changing the sp^2 hybridization to sp^3 hybridization making it unstable.