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10.4 Which one of the following has the highest dipole moment?

             (i) CH2Cl2         (ii) CHCl3         (iii) CCl4

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The order of dipole moment will be :-                CH2Cl2    >  CHCl3   >   CCl4.

The reason for the above order is given as- CCl4 is a symmetrical compound so its dipole moment will be zero. In case of CHCl, one of the Cl cancels dipole moment of the opposite Cl atom, so net dipole moment is just due to one Cl. In the case of CH2Cl2 , both Cl groups contribute to the dipole moment so it has the highest dipole moment among all.

Posted by

Devendra Khairwa

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