Question

The species which cannot serve as an initiator for the free radical polymerisation, is

• A.
• B.
• C.
• D.

Answer 1

Answer: (D)

Answer 2

A variety of unsaturated compounds such as alkenes, alkadienes and their derivatives readily undergo polymerisation in the presence of radical initiator (radical generating catalyst) such as dioxygen, benzoyl peroxide, acetyl peroxide, tert-butyl peroxide etc. As $PHCH _{2} CHO$ does not have peroxide linkage and it does not serve as radical initiator.