Question

iron rod kept in copper sulphate solution turned brown after some time. Explain why ? what other changes will you observe

Answer 1

Iron rod in copper sulphate solution turns brown after sometime beacause displaces the copper from its salt solution and take the colour of the copper that is brown and turn into brown colour

Answer 2

Heya!! Here is your answer friend ⤵⤵
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◀WHEN AN IRON ROD IS KEPT IN A COPPER SULPHATE SOLUTION, A DISPLACEMENT REACTION TAKES PLACE BETWEEN THEM WHICH CAN BE STATED AS ,

Fe + CuSO4 --------------- FeSO4 + Cu

THE OBSERVATIONS CAN BE STATED AS-

◾THE BLUE COLOUR OF THE COPPER SULPHATE SOLUTION FADES AWAY.

◾ A REDDISH BROWN COATING IS DEVELOPED IN THE IRON ROD . THIS IS DUE TO THE FORMATION OF FERROUS SULPHATE.


Hope it helps you ✌✌