Question

why do the colour & solution of copper sulpate change when we take a solution of copper sulpate in a beaker and put an iron nail in it​

Answer 1

Explanation:

When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green.

Answer 2

Answer:

because iron is more reactive than copper

Explanation:

check the activity series of metals on textbook of 10th case science