Question

Mohit was doing experiment with iron nail and copper sulphate solution in his school
laboratory. He placed iron nail in a test tube containing copper sulphate solution.
After 15 minutes he took out nail from solution and noted down various
observations.
Now answer the following questions:
A. Was there any change in colour of solution?
B. Was there any brown colour shining on iron nail?
C. Was it a physical or chemical change?
D. Which type of chemical reaction is shown by this activity?
E. Write down chemical reaction involved in activity​

Answer 1

Answer:

CuSO

4

is a blue colour solution. When iron nails kept in copper sulphate solution there is a reaction between them as As Iron is more reactive than Copper it can replace Copper from CuSO

4

as

Fe+CuSO

4

→FeSO

4

+Cu

So, the blue colour solution changes to green.