Question

on adding dilute hydrochloric acid to the reaction mixture of sodium sulphate and barium chloride,white precipitate disappears .Which of the following is correct explanation ?
1) HCL decomposes barium sulphate
2) barium chloride is insoluble in water
3) displacement reaction takes place
4) barium sulphate is a salt of strong acid​

Answer 1

Answer:

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3) displacement reaction takes place

Answer 2

Explanation:

• 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.