Question

20. Write a chemical equation for the
reaction taking place in the test tube.
Stand
How does the colour of solution
change? What is change in colour of
Test Tube
Thread
Copper Sulphate
Solution
Iron Nails
iron nails?
​

Answer 1

Hi,

Here is the answer to your query:-

1.Iron nail will become reddish brown in Copper Sulphate solution.

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

This is because the Iron is more reactive than copper and displaces copper from copper sulphate solution forming Iron Sulphate.

2.Copper Sulphate solution will change its colour from blue to green because the colour of copper sulphate solution is blue but after reaction it forms iron sulphate solution which is of green colour.

Hope it helps you....

plz mark as brainliest.....

M comment nhi kr sakta hu plz query na puccho abhi or haa iron ka colour bhi change hoga.. okk