Question

what happens when Iron nails are put into copper sulphate solution

Answer 1

When iron nails put into copper sulphate first it is in blue there takes reaction between them and coppersulphate changes its colour from blue to light green. As iron is more reactive than copper

Answer 2

First take a beaker and add copper sulphate which is of blue color.
When we add iron nails in it it will change its color.
It is because iron is more reactive and displace less reactive copper from its salts.

Hope this will help u