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

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IV only

II and IV

I only

II only

answer is D.

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Detailed Solution

Barium chloride on reacting with ammonium sulphate forms barium sulphate and ammonium chloride is double displacement reaction and precipitation reaction.
The chemical reaction is given below.

BaC l_{2} (aq) + (N H_{4}) S O_{4} (aq) \to BaS O_{4} (s) + 2 N H_{4} Cl

In this reaction displacement of ion occurs, barium ions of barium chloride and sulphate ion of ammonium sulfate combines and it forms precipitates of barium sulphate and ammonium ion combines with with chloride ion and it forms ammonium chloride (NH4Cl). Sp displacement of ions occurs and precipitation reaction is also included above reaction is a double displacement reaction.

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