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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 CHCl3 , 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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