BaCl₂(aq)+Na₂SO₄(aq) → BaSO₄(s) + 2NaCl(aq) The above reaction involves which type of reaction: (a) Displacement (b) Precipitation (c) Combination (d) Double displacement

Answer: Both (b) and (d)

A precipitate of barium sulphate is obtained so it’s a precipitation reaction.

Also, when two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or product it is a double displacement reaction.

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