See image — Hydrocarbons Chemistry Question

💡 Solution & Explanation

Correct option: \(\text{C}\). Aromaticity requires a cyclic, planar, fully conjugated system obeying Hückel's rule, \((4n+2)\pi\) electrons. Benzene-like systems prefer electrophilic substitution to preserve aromatic stability. Recovered question text: 9. When n-heptane is reacted in the presence of Cr O and Al O at high temperature and 2 3 2 3 pressure then major product will be :- (1) Benzene (2) Toluene (3) Ethylbenzene (4) Phenol