Assertion : $C O_{2}$ is non polar while $S O_{2}$ is polar molecule. Reason: $S - O$ bonds are polar while $C - O$ are non polar.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Assertion is incorrect but Reason is correct.

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Solution

The correct option is C Assertion is correct but Reason is incorrect.
Both $S - O$ bonds and $C - O$ are both polar due to the electronegativity difference between $C$ and $O, S$ and $O$ . $C O_{2}$ is a linear molecule, because it is symmetric. So the dipole moments of the $2 C - O$ bonds cancel each other. While in $S O_{2}$ , two lone pairs are also present. It is thus a polar molecule.

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Assertion :CO2 is non polar while SO2 is polar molecule. Reason: S−O bonds are polar while C−O are non polar.

Assertion : $C O_{2}$ is non polar while $S O_{2}$ is polar molecule. Reason: $S - O$ bonds are polar while $C - O$ are non polar.