CBSE Class 10 Science 2018 · Paper 31/1 · Question 23
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
A white precipitate of barium sulphate forms; the reaction is a double displacement (precipitation) reaction.
Observation: a white precipitate (of barium sulphate) is formed.
Equation:
Type of reaction: double displacement reaction (also a precipitation reaction), since the two compounds exchange their ions.
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