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What is Lucas reagent: Give its reaction...

What is Lucas reagent: Give its reaction with primary `(1^(@))` and tertiary `(3^(@))` alcohols?

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Mixture of anhydrous `ZnCl_(2)` and Conc, HCl is called Lucas reagent. Lucas reagent gives (turbidity immeddiately with tertiary alcohols and primary alcohols gives turbidity on heating.
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Knowledge Check

  • The correct order of boiling point for primary (1^@) secondary (2^@) and tertiary (3^@) alcohols is

    A
    `1^@ gt 2^@ gt 3^@`
    B
    `3^@ gt 2^@ gt 1^@`
    C
    `2^@ gt 1^@ gt 3^@`
    D
    `2^@ gt 3^@ gt 1^@`

  • The correct order of melting and boiling points of primary (1^(@)) , secondary and tertiary (3^(@)) alkyl halides is :

    A
    `1^(@)gt2^(@)gt3^(@)`
    B
    `3^(@)gt2^(@)gt1^(@)`
    C
    `2^(@)gt3^(@)gt1^(@)`
    D
    `3^(@)gt1^(@)gt2^(@)`

  • Acid anhydrides on reaction with primary amines give:

    A
    amide
    B
    imide
    C
    Secondary amine
    D
    imine

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