Question

Q 24. What will be the colour of Iron filings and Copper Sulphate solution, when they
react with each other? (i) Before the experiment. (ii) After the experiment.
Give reason for the change in colour (2)​

Answer 1

When an iron nail immersed in the solution of copper sulphate than iron displaces copper from the solution of copper sulphate because iron is more reactive than copper. Therefore copper sulphate solution colour changes from blue to pale green.

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