Question

Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride. Which of the following correctly represents the type of the reaction involved?
(i) Displacement reaction
(ii) Precipitation reaction
(iii) Combination reaction
(iv) Double displacement reaction
(A) (i) only (B) (ii) only
(C) (iv) only (D) (ii) and (iv)

Answer 1

(D) (ii) and (iv)

In the given reaction, there is exchange of ions between the reactants, thus it is a double displacement reaction. Also, white precipitate of barium sulphate is formed as a product, thus it is also an example of precipitation reaction.