# Which of the following statements is not correct regarding vinylic polymerisation?

$\begin {array} {1 1} (a)\;\text{It involves free radical addition}\\ (b)\;\text{The presence of carbon tetrachloride in styrene polymerisation results in lowering of average molecular mass of the polymer} \\ (c)\;\text{The presence of benzoquinone increases the polymerisation process}\\ (d)\;\text{The presence of$CCl_4$acts as inhibitor} \end {array}$

Benzoquinone combines with free radical intermediate to form a non reactive radical which is highly stabilized by resonance .Because of the lack of reactivity of the new radical formed the reaction rate decreses
Ans : (c)