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❥A᭄ɴsᴡᴇʀ࿐:
Blue Colour solution is COPPER SULPHATE {CuSO4} SOLUTION.
when, Iron nail dipped in CuSO4 Solution
the colour changes to pale green.
CuSO4+Fe--------- FeSO4+Cu
Extra information
❥ The reaction takes place in this case is known sa displacement reaction.
❥ IN THIS REACTION FE DISPLACES CU FROM CuSO4 SOLUTION.
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