Assertion :Structure of $S O_{4}^{2 -}$ is identical to $S_{2} O_{3}^{2 -}$ . Reason: Sulphur atoms in $S_{2} O_{3}^{2 -}$ are in different oxidation states.

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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Both Assertion and Reason are incorrect.

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Solution

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

Both $S O_{4}^{2 -}$ and $S_{2} O_{3}^{2 -}$ have identical structure.
The central S atom is $s p^{3}$ hybridized which results in tetrahedral geometry.
$S_{2} O_{3}^{2 -}$ contains S atoms in different oxidation states.
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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