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reactions involving a free-radical intermediate

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Which one of the following reactions involves a free-radical intermediate?

a. Acid-catalyzed hydration of (CH3CH2)2C=CHCH3
b. Addition of hydrogen bromide to (CH3CH2)2C=CHCH3 in the presence of peroxides
c. Alkylation of sodium acetylide with bromoethane
d. Dehydration of (CH3CH2)3COH with H2SO4
e. E1 elimination of (CH3CH2)3CCl

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Solution Summary

This solution goes through reactions which involve free-radical intermediates within the context of organic chemistry.

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