Question
Give two examples of double displacement reaction.
✓
Answer
(1) Solutions of sodium chloride and silver nitrate react with each other forming a precipitate of silver chloride and a solution of sodium nitrate.
White precipitate of AgCl is formed by exchange of ions $Ag+$ and $Cl–$ between the reactants.(2) Barium suiphide reacts with zinc sulphate to form zinc sulphide and a white precipitate of barium sulphate.
white precipitate is formed by exchange of ions $Ba ^{++}$and $SO _4^{-}$between the reactants.
White precipitate of AgCl is formed by exchange of ions $Ag+$ and $Cl–$ between the reactants.(2) Barium suiphide reacts with zinc sulphate to form zinc sulphide and a white precipitate of barium sulphate.
white precipitate is formed by exchange of ions $Ba ^{++}$and $SO _4^{-}$between the reactants.
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