Which of the following statement is/are wrong about pericyclic reaction?

Options

A. It is intramolecular cyclisation of acyclic compound
B. It is intermolecular cyclisation of acyclic compound
C. It proceeds via concerted mechanism in which treaking and formation of bonds take place simultaneously
D. It proceeds via free-radical mechanism

Answer

B, D

Explanation

It is intermolecular cyclisation of acyclic compond.
It proceeds via free radical mechanism