Paheli prepared a blue coloured solution of copper sulphate in beaker A and placed an iron nail in it

cbse
cbse-class-8-science
materials-metals
and-nonmetals

#1

Paheli prepared a blue coloured solution of copper sulphate in beaker A and placed an iron nail in it. Boojho prepared a yellowish green solution of ferrous sulphate in beaker B and placed a copper wire in it. What changes will they observe in’the two beakers after an hour?

Answer:
In beaker A, a reddish brown layer of copper will deposit on the iron nail and the blue coloured solution will become yellowish green.
On the other hand, no change is observed in beaker B.