Question

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 produced

The correct option is:

(a) (B) and (D) (b) (A) and (C)

(c) only (B) (d) (B), (C) and (D) ​

Answer 1

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.

correct option is b and c

its the answer...