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If B-Cl bond has a dipole moment, explai...

If B-Cl bond has a dipole moment, explain why `BCl_3` molecule has zero dipole moment.

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The B-atom in `BCl_3` molecule is `sp^2` -hybridised and the molecule posses trigonal planar geometry. As the molecule is symmetrical, the resultant dipole moment of the three B-Cl bonds is zero. Thus `BCl_3` molecule has zero dipole moment.
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Knowledge Check

  • The dipole moment of is

    A
    0 D
    B
    1.5 D
    C
    2.86 D
    D
    2.25 D

  • Nitrous oxide has dipole moment

    A
    Zero
    B
    small
    C
    Large
    D
    variable

  • The molecule having permanent dipole moment is

    A
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    B
    `CO_2`
    C
    `BF_3`
    D
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