1) Symmetrical splitting a) homolytic fission b) heterolytic fission 2) Rate of reaction determined by a) fast step b) slow step 3) free radicals a) unstable b) stable 4) shape of carbanion a) planar b) pyramidal 5) nucleophiles are a) lewis acid b) lewis base 6) ammonia is an example of a) electrophile b) nucleophile 7) Antioxidants prevents a) heart diseases b) increase the effect of free radical 8) Homolytical cleavage needs a) greater energy b) lesser energy 9) intermediate are a) long lived b) short lived 10) free radicals formed by a) heterolyic cleavage b) homolytic cleavage

UNIT - 12

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