CBSE Class 10 Science 2015 Term I Set 1

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Question : 34
Total: 36
While studying the double displacement reaction, the solutions of barium chloride and sodium sulphate are mixed together.
(i) What do you observe as soon as the two solutions are mixed together?
(ii) What will happen in the above observation made by you after ten minutes?
Solution:  
(i) The reaction mixture becomes white in colour and a precipitate is formed.
(ii) White precipitate settles down after 10 minutes.
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