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Predict the order of reactivity of the f...

Predict the order of reactivity of the following compounds in dehydrohalogenation:
(a) `CH_(3)CH_(2)CH_(2)CH_(2)Cl, (CH_(3))_(2)CHCH_(2)Cl, (CH_(3))_(2)CH-CH_(2)Br, CH_(3)CH(Br)CH_(2)CH_(3), (CH_(3))_(3)C-Br`
(b) `CH_(3)CH(Br)CH_(3), CH_(3)CH_(2)CH_(2)Br, (CH_(3))_(2)CHCH_(2)Br, (CH_(3))_(2)C CH_(2)Br`

Text Solution

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(a) `(CH_(3))_(3)CBr gt CH_(3)underset(Br)underset(|)CH CH_(2)CH_(3) gt (CH_(3))_(2)CHCH_(2)Br gt (CH_(3))_(2)CHCH_(2)Cl gt CH_(3)CH_(2)CH_(2)CH_(2)Cl`
(b) `CH_(3)CH(Br)CH_(3) gt (CH_(3))_(3)C CH_(2)Br gt (CH_(3))_(2)CHCH_(2)Br gt CH_(3)CH_(2)CH_(2)Br `
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