Question

4. An aluminium strip is kept immersed in freshly
prepared ferrous sulphate solution taken in a
test tube, the change observed is that:
(a) Green solution slowly turns brown
(b) Lower end of test tube becomes slightly
warm
(c) A colourless gas with the smell of burning
sulphur is observed
(d) Light green solution changes to blue
​

Answer 1

Answer:

As it is less reactive than Iron, it's colour changes to blue.

I.E. (D) is the correct answer