Question

A student prepared two salts X and Y in their aqueous state, which are colourless. When he added X solution to Y solution, he observed that the solution changes into yellow colour ,he kept the solution undisturbed a yellow colour insoluble solid 'M' settle down at the bottom of the test tube, above the solid a clear liquid 'N' is formed. A) what are X and Y compounds? B) what is the chemical name of 'M' C) what type of chemical reaction it is? D) write the balanced equation for the above chemical reaction.

Answer 1

When sodium sulphate solution reacts with barium chloride solution results in double displacement reaction in which ions are exchanged.

Na

2

SO

4

+BaCl

2

⟶2NaCl+BaSO

4

In this reaction barium sulphate and sodium chloride are formed,the solution in water consists only sodium chloride because sodium chloride dissolves in water while barium sulphate it settles down and a white precipitate is formed (insoluble).

Hence, option B is correct.

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