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JEE Main levelSingle correct optionDifficulty 2 of 3cb137

$CO X_{2}$ has zero dipole moment whereas $SO X_{2}$ has a non-zero dipole moment. This is because

Asulfur is less electronegative than carbon
B $CO X_{2}$ has no polar bonds
C $SO X_{2}$ is linear and $CO X_{2}$ is bent
D $CO X_{2}$ is linear and $SO X_{2}$ is bent

Answer: D

Both molecules contain polar bonds. In linear

CO X_{2}

the two bond dipoles cancel, while in bent

SO X_{2}

they add vectorially to a non-zero resultant.

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