See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Option (D) has longest chain of 5C-atom which is not the chain isomer Chain isomer : In which only main chain will differ CH3 CH3 C H3 C H2 CH2 CH3 C H2 C H3 1 2 3 4 5 5 4 1 3 2  D   Given compound