Reaction of an inorganic sulphite X with dilute H2SO4 generates compound Y. Reaction of Y with NaOH gives X. Further, the reaction of X with Y and water affords compound Z. Y and X, respectively, are:

Question

(A) SO2 and Na2SO3
(B) S and Na2SO3
(C) SO2 and NaHSO3
(D) SO3 and NaHSO3

Prashant Kotian · Accepted Answer

Correct answer: C. Sol. NaHSO3 + dil. H2SO4  SO2     NaOH NaHSO3       2SO H . dil SO2 ‘X’ ‘Y’ ‘X’

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