Assertion: S reacts with $S O_{3}^{2 -}$ and forms $S_{2} O_{3}^{2 -}$
Reason: S is electron deficient and acts an acid and $S O_{3}^{2 -}$ is a base in terms of Lewis acid theory.
Read the above assertion and reason and choose the correct option regarding it.

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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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

According to Lewis concept of acids and bases, an acid is a substance which can accept a lone pair of electrons whereas a base is a substance which can donate a lone pair of electrons.
Lewis acid-base reaction involves the donation of lone pair electrons from base to acid. This donation results in a coordinate bond.
As $S$ is electron deficient so it acts as an acid and $S O_{3}^{2 -}$ is a base in terms of Lewis acid theory.

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Assertion: S reacts with SO2−3 and forms S2O2−3Reason: S is electron deficient and acts an acid and SO2−3 is a base in terms of Lewis acid theory.Read the above assertion and reason and choose the correct option regarding it.

Assertion: S reacts with $S O_{3}^{2 -}$ and forms $S_{2} O_{3}^{2 -}$
Reason: S is electron deficient and acts an acid and $S O_{3}^{2 -}$ is a base in terms of Lewis acid theory.
Read the above assertion and reason and choose the correct option regarding it.