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JEE Main levelSingle correct optionDifficulty 2 of 3cb138

The correct decreasing order of dipole moment is

A $CH X_{3} Cl > CH X_{2} Cl X_{2} > CHCl X_{3} > CCl X_{4}$
B $CCl X_{4} > CHCl X_{3} > CH X_{2} Cl X_{2} > CH X_{3} Cl$
C $CHCl X_{3} > CH X_{2} Cl X_{2} > CH X_{3} Cl > CCl X_{4}$
D $CH X_{2} Cl X_{2} > CH X_{3} Cl > CHCl X_{3} > CCl X_{4}$

Answer: A

Experimental dipole moments (D):

CH X_{3} Cl

1.87,

CH X_{2} Cl X_{2}

1.60,

CHCl X_{3}

1.04,

CCl X_{4}

0 (symmetrical tetrahedron). This gives the order in the first option.

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