Answer please :-
While performing an experiment, a student adds sodium sulphate solution to a colourless solution.
A white precipitate is immediately formed and is insoluble in dil. HCl.
The colourless solution is ??????????? & the precipitate formed is????????

Dear student,
Refer below for above asked query:-
The colourless solution is Barium chloride and Precipitate is Barium sulphate.

When solutions of barium chloride and sodium sulphate are mixed together, then an insoluble precipitate of barium sulphate and solution of sodium chloride is obtained. Hence, this reaction is a precipitation (a kind of double displacement reaction) reaction. The chemical equation for reaction between barium chloride and sodium sulphate is represented as follows

 BaCl₂ + Na₂SO₄ → BaSO₄ + 2NaCl  


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