s-Block ElementsHard

Question

Na2CO3 reacts with SO2 in alkaline medium to form:

Options

A.Na2SO3
B.NaHSO3
C.Na2SO4
D.NaHSO4

Solution

In alkaline medium Na2CO3 reacts with SO2 to from Na2SO3 (Sodium sulphate). On reaction with caustic alkalies SO2 forms two types of salts - bisulphites and sulphates. In alkaline medium, it forms Na2SO3

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