16. A student placed an iron nail in 25 ml of copper sulphate taken in a test
tube.
3
(a) What will be observe after a few hours? Why?
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THE BLUE SOLUTION TURNS GREEN.
THE COPPER SEATTLE OVER THE SURFACE OF IRON NAIL.
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Answer:
The Iron nail become brown
Explanation:
According to Displacement reaction the more reactive metal displace other from its salt solution
Fe+CuSo4---->Feso4+cu
hence the copper will deposit over iron
hence its colour change
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