Question

On adding a drop of barium chloride solution to an equeous solution sulphite a. White chemical equation of the reaction involved b. What other name can be given to this presentation reaction c. On adding dil hcl to the reaction mixture white ppt disappears

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Answer 1

Solution:

a)On adding a drop of Barium Chloride solution to an aqueous solution of sodium sulphite, white precipitate is obtained.This white precipitate is a barium sulphite.

BaCl2 + Na2SO3------>BaSO3 + 2NaCl

b) This reaction is also a double displacement reaction.

c) On adding dilute hydrochloric acid to the reaction mixture, Barium Chloride ,Sulphur dioxide and water are formed. Since Barium chloride is a soluble substance thus, white precipitate disappears.

BaSO3 + HCl --------> BaCl3 + SO2 + H2O.

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