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Question

Which alcohol will give immediate turbidity on shaking with HCl at room temperature?

A
3-Methylpentan-2-ol
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B
2-Methylbutan-1-ol
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C
Butan-3-ol
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D
2-Methylpropan-2-ol
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Solution

The correct option is D 2-Methylpropan-2-ol
2-methylpropan-2-ol is a tertiary alcohol. It will give immediate turbidity on shaking with HCl at room temperature. This is the bases for Lucas test which is used to distinguish primary, secondary and tertiary alcohols.
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