Question

what is observed when a solution of sodium sulphate is added to a solution of barium chloride taken in a test tube.write equation for the chemical reaction involved and name the type of reaction in this case​

Answer 1

Answer: When a solution of sodium sulphate is added to a solution of barium chloride, a white precipitate of barium sulphate will be formed immediately. This precipitate is insoluble in dilute hydrochloric acid (dil.HCl) and also insoluble in water. This type of reaction is called precipitation reaction as the Baso4 precipitate thus formed is of white colour.

The equation of the above-mentioned reaction is given as follows:

Na2SO4 (aq) + BaCl2(aq) -------> BaSO4(s) + 2NaCl(aq)

Since, barium sulphate is insoluble in water, so it will precipitate as a solid, whereas the sodium chloride will remain in solution.

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Answer 2

Answer:

When the sol. of Sodium Sulphate(NaSO4) is added to Barium Chloride(BaCl), a white precipitate is formed on the test tube.

Equation: NaSO4+BaCl = NaCl+BaSO4

The type of chemical reaction which happens here is Double Displacement Reaction.