Question

Reaction between barium chloride and sodium sulphate goes to completion because :

• A. barium sulphate is almost insoluble
• B. the reaction is reversible
• C. the solubility of barium chloride decreases
• D. the reaction is irreversible

Answer 1

Answer: (A), (D)

the reaction is irreversible
barium sulphate is almost insoluble

Reaction between barium chloride and sodium sulphate goes to completion because barium sulphate is almost insoluble and the reaction is irreversible.The sulphate ion,originally part of sodium sulphate, is now present as precipitate barium sulphate,which does not dissolves in water.