On adding a drop of barium chloride solution to an aqueous solution of sodium sulphite, white pr...

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On adding a drop of barium chloride solution to an aqueous solution of sodium sulphite, white precipitate is obtained.(W)(a) Write a balanced chemical equation of the reaction involved(b) What other name can be given to this precipitation reaction?(c) On adding dilute hydrochloric acid to the reaction mixture, white precipitate disappears. Why?
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