The alcohol which gives the most stable carbonium ion on dehydration is:

(C H_{3})_{2} C H C H_{2} O H

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(C H_{3})_{3} C - O H

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C H_{3} C H_{2} C H_{2} C H_{2} O H

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C H_{3} - C H - C H_{2} C H_{3}

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Solution

The correct option is B $(C H_{3})_{3} C - O H$
Tert-butanol loses an $- O H$ group to give most stable carbonium ion. The positive charge on carbon atom is stabilized by $+ I$ inductive effect of 3 methyl groups.

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