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NEET levelSingle correct optionDifficulty 1 of 3cb120

Which of the following has the largest dipole moment?

A $CH X_{4}$
B $CO X_{2}$
C $CCl X_{4}$
D $H X_{2} O$

Answer: D

CH X_{4}

,

CCl X_{4}

(tetrahedral) and

CO X_{2}

(linear) have zero dipole moment by symmetry. Bent

H X_{2} O

has a net dipole moment of about 1.85 D.

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