Question

Take aqueous solution of copper sulphate in one test tube and ferrous sulphate in another test tube.Dip an iron nail in copper sulphate and copper wire in ferrous sulphate solution. Mark the correct
observation.
(1) Blue colour in first test tube changes to light green and green colour in the second test tube changes
to blue
(2) There is no reaction in both the test tubes.
(3) Blue colour in first test tube changes to light green and no change in second test tube.
(4) Blue colour remains as such and green colour in second test tube changes to blue​

Answer 1

Answer:

As less reactive metals cannot displace the metals with higher reactivity, copper cannot displace the iron present in ferrous sulphate solution and thus no reaction takes place between Ferrous Sulphate and Copper(Cu).

Explanation:

Answer 2

Answer:

2nd one is a right answer