Q.

Free radical reactions

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a

Occur in gas phase

b

Are often autocatalytic

c

Are initiated by light, oxygen or peroxides

d

All are correct

answer is D.

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Detailed Solution

→ The symmetrical cleavage of a covalent bond is called homolytic creavage [Homolysis].→ It takes place when two atoms are of similar electronegativity→ The fragments with are formed during homolysis are called free radicals.→ homolysis is denoted by Fish hook arrow→ It occurs at high temperatures (or) in presence of sunlight (or) in presence of organic peroxides.
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