Question

In a double displacement reaction such as the reaction with between sodium sulphate solution and barium chloride solution :
(A) exchange of atoms takes place
(B) exchange of ions take place
(C) a precipitate is produced
(D) an insoluble salt is produced

The correct option is
(a) (B) and (D)
(b) (A) and (C)
(c) only(B)
(d) (B),(C) and (D)

Give reaction also​

Answer 1

Answer:

(d) BaSO4 is a white precipitate i.e. an insoluble salt.

NaSO4 + BaCl2 ──⟩ BaSO4↓ + 2NaCl

Answer 2

Explanation:

Double displacement reactions generally take place in aqueous solutions in which the ions precipitate and there is an exchange of ions. For example, on mixing a solution of barium chloride with sodium sulphate, a white precipitate of barium sulphate is immediately formed. These reactions are ionic in nature.