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The presence of which of the following inhibit the free radical polymeisaation of a vinyl derivative?

$\begin {array} {1 1} (a)\;Benzaldehyde & \quad (b)\;Benzophenone \\ (c)\;Benzoquinone & \quad (d)\;None \: of\: the\: above \end {array}$

1 Answer

Benzoquinone combines with free radical intermediate to form a non reactive radical which is highly resonance stabilized.Because of the lack of reactivity of the new radical formed it inhibits further progress of chain reaction and the reaction stops
Ans : (c)
answered Mar 12, 2014 by thanvigandhi_1
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