Question

Barium chloride on reacting with sodium sulphate forms barium sulphate and sodium chloride. Which of the following is the precipitate?

• A. Barium chloride
• B. Sodium sulphate
• C. Barium sulphate
• D. Sodium chloride

Answer 1

The correct option is C

Barium sulphate

The reaction involved: $\underset{\left(solution\right)}{Bariumchloride}+\underset{\left(solution\right)}{Sodiumsulphate}\to \underset{(whiteppt.)}{Bariumsulphate}\downarrow +\underset{\left(solution\right)}{Sodiumchloride}$ ,
when barium chloride reacts with sodium sulphate, it forms white precipitate of barium sulphate along with sodium chloride. Because a precipitate is an insoluble solid. And here, sodium chloride, barium chloride and sodium sulphate is in the solution form.