Q.

Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride. The balanced chemical equation for the reaction is

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a

BaCl2 + Na2SO4 →  BaSO4 + 2NaCl

b

2BaCl2 + Na2SO4 →  BaSO4 + 2NaCl

c

BaCl2 + 2Na2SO4 →  BaSO4 + 2NaCl

d

BaCl2 + Na2SO4 →  2BaSO4 + 2NaCl 

answer is A.

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Detailed Solution

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Barium chloride (BaCl2) reacts with sodium sulphate (Na2SO4) to give barium sulphate (BaSO4) and sodium chloride (NaCl). Barium sulphate is insoluble which is why it precipitates. The precipitate is white in colour. This reaction is a double displacement reaction.

The balanced chemical equation for the reaction is BaCl2 + Na2SO4 →  BaSO4 + 2NaCl.

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Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride. The balanced chemical equation for the reaction is