Question

Write two observation when iron nail is kept in cuso4 solution for 30 minutes

Answer 1

observations :
1)copper sulphate solution is blue in colour. when we put the iron nail in solution .After some time the solution turns pale green .
2)brownish deposit of copper can be seen on the iron nail.
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Answer 2

Observations :

1)copper sulphate solution is blue in colour. when we put the iron nail in solution .After some time the solution turns pale green .

2)brownish deposit of copper can be seen on the iron nail.