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Why is the solubility of haloalkanes in ...

Why is the solubility of haloalkanes in water very low?

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In order for a haloalkane to dissolve in water, energy is required to overcome the attractive force between the haloalkane molecules and break the H-bonds between `H_(2)O` molecules. Less energy is released when new attractions are set up between the haloalkane and the water molecules as these are not as strong as the original H-bonds in water. So the solubility of haloalkanes in water in very low.
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Knowledge Check

  • The solubility of ammonia in water is

    A
    very high
    B
    very low
    C
    low
    D
    high

  • Low solubility of CsI in water is due to :

    A
    smaller hydration enthalpy of `Cs^+.`
    B
    smaller hydration enthalpy of `I^-`.
    C
    lower lattice enthalpy of its two ions.
    D
    (1) and (2) both.

  • Which is correct order of solubility in water -

    A
    `Ba(OH)_2 lt Mg(OH)_2`
    B
    `BaCO_3 gt CaCO_3`
    C
    `CaSO_4 lt MgSO_4`
    D
    `Ca(OH)_2=Mg(OH)_2`

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