A white crystalline salt (A) react with dilute HCl to liberate a suffocating gas (B) and also forms a yellow precipitate. The gas (B) turns potassium dichromate acidified with dil.H2SO4 to a green coloured solution(C). A,B and C are respectively
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Explanation:
The reaction of barium chloride with dilute sulphuric acid forms white precipitate of barium sulphate and hydrochloric acid. This type of reaction is called double displacement reaction in which both the reactants exchange their partners.
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