In a double displacement reaction such as the reaction between sodium sulphate solution and barium chloride solution :(A) exchange of atoms takes place (B) exchange of ions takes place(C) a precipitate is produced (D) an insoluble salt is producedThe correct option is : (a) (B) and (D) (b) (A) and (C) (c) only (B) (d) (B), (C) and (D)

Correct Answer: (d) (B), (C) and (D)

Explanation: In a double displacement reaction such as the reaction between sodium sulphate solution and barium chloride solution, sodium sulphate chemically reacts with barium chloride in the form of their aqueous solution to form a white precipitate of barium sulphate. This is a double displacement reaction in which sulphate ions and atoms are displaced.