Question

what changes do you observe in the iron nail and colour of copper sulphate solution if iron nail are dipped in copper sulphate 4 solution for 15 minutes

Answer 1

Copper Sulphate Solution (CuSO4) is blue in colour. When iron nail is placed in it, we can observe the following:

1) reddish brown deposits on iron (these are of Copper)

2) colour of the solution turns from blue to light green.

The formula for this reaction is: Fe + CuSO4 --> FeSO4 + Cu

Here, Fe is more reactive than Cu. So Fe displaces Cu to form Iron Sulfate and Copper.

Answer 2

Answer: when iron nail is dipped in copper sulphate there takes reaction between them and copper sulphate change its colour from Blue to dirty

light green