Arrange the following molecules from most to least polar.

CH4              CF2Cl2             CF2H2            CCl4                CCl2H2I                         II                     III                   IV                        V

(A) III>V>II > IV=I                                  (B) II>IV>III>IV>I

(C) III>II>V>IV>I                                  (D) V>III>II>IV=I    

Concept Videos :-

#15 | Dipole Moment

Concept Questions :-

(A)  (i) In CH4 and CCl4 tetrahedral (symmetrical molecules), bond dipoles cancel other
resulting in zero diple moment.

     (ii) As electronegativity difference between two bonded atoms increases, the bond polariaty
increases resulting into the increase in dipole moment.

Difficulty Level:

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