Question

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:

The lower end of the test tube becomes slightly warm. Explanation: The lower end of the test tube becomes slightly warm because the reaction is exothermic. Aluminium displaces iron from the ferrous sulphate because it is higher in the reactivity series than iron.

Answer 2

Answer:

When an aluminium strip is kept immersed in freshly prepared ferrous sulphate solution taken in a test tube, the change which is observed is light green solution changes to blue . In reactivity series, Aluminium is considered to be more reactive as compared to iron i.e., ferrous or ferric.