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Mixture of conc. HCl and anhydrous ZnCl2...

Mixture of conc. HCl and anhydrous `ZnCl_2` is an important reagent which helps to distingulsh between `1^@,2^@` and `3^@` alcohols.
Explain how the above reagent helps to distinguish above three types of alcohols.

Text Solution

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On shaking with Lucas reagent`3^@` alcohol gives immediate turbidity due to the formation of `3^@` alky 1 halide. Secondary alcohol gives turbidity in about five minutes. Primary alcohol does not give turbidity at room temperature.
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Knowledge Check

  • The reagents used to distinguish between (CH_3)_3 N ,(CH_3)_2 NH is/are

    A
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    B
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    bromine, `C Cl_4`
    B
    `H_2` , Lindlar catalyst
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    D
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