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KCET 2020 Chemistry Solved Paper

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Question : 1

Total: 60

Aqueous solution of a salt (A) forms a dense white precipitate with BaCl2 solution. The precipitate dissolves in dilute HCl to produce a gas (B) which decolourises acidified KMnO4 solution. A and B respectively are:

BaSO3,H2S
BaSO4,SO2
BaSO3,SO2
BaSO4,H2S

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