Question

what changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for 30 min

Answer 1

Answer:

A fter 30 minutes:

1)  The initial blue colour of copper sulphate solution is changed to light green colour of iron sulphate.

2)  The initial silver colour of iron nail is changed to reddish-brown colour due to coating of copper metal on the nail.

Answer 2

Explanation:

when iron nail is dipped in copper sulphate solution the blue colour of copper sulphate solution turn into light green because of the formation of ferrous sulphate

and the silvery colour of iron convert into brown colour due to the formation of copper