Which of the following compounds would not react with Lucas reagent at room temperature?

H_{2} C = C H C H_{2} O H

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C_{6} H_{5} C H_{2} O H

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

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

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Solution

The correct option is B $C H_{3} C H_{2} C H_{2} O H$
$C H_{3} C H_{2} C H_{2} O H$ would not react with Lucas reagent at room temperature.
$C H_{3} C H_{2} C H_{2} O H$ is a primary alcohol. It does not undergo ${S_{N}}^{1}$ at room temperature. Hence, it will not give turbidity with Lucas reagent at room temperature.
Tertiary alcohols produce turbidity immediately. Benzyl and allyl alcohols react as rapidly as tert-alcohols because their corresponding carbocations are quite stable due to resonance.

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