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What are haloalkanes and haloarenes ?...

What are haloalkanes and haloarenes ?

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The replacement of hydrogen atom(s) in an saturated aliphatic hydrocarbon and aromatic hydrocarbon by halogen atom(s) results in the formation of alkyl halide (haloalkane) and aryl halide (haloarene), respectively.
Haloalkanes contain halogen atom(s) bonded to the `sp^(3)` hybridised carbon atom of an alkyl group whereas haloarenes contains halogen atom(s) bonded to `sp^(2)` carbon atoms(s) of an aryl group.
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Explain classification of haloalkanes and haloarenes on the basis of number of halogen atoms.

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Knowledge Check

  • Which of the following is not the use of haloalkanes and haloarenes ?

    A
    Drugs
    B
    Solvent
    C
    Anaesthesia
    D
    Cement

  • Boiling point and solubility of phenol is more than that of other arenes and haloarene with same molecular weight, because

    A
    Phenol can form intermolecular H-bond
    B
    Phenol can form weak Vander valls bond
    C
    Phenol is very reactive
    D
    All of these are correct

  • High purity and more quantity of haloalkanes are obtained by ……

    A
    reaction of alcohol with sodium halide and conc. `H_(2)SO_(4)`.
    B
    reaction of alcohol with phosphorus halide.
    C
    reaction of alcohol with HCl in presence of `ZnCl_(2)`.
    D
    reaction of alcohols with `SOCl_(2)`.

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    Haloarenes are less reactive than haloalkanes and haloalkenes. Explain.

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