When an aluminium strip is kept
(a) Green solution of FeSO₄ slowly turns brown
(b) Green solution of FeSO₄ rapidly turns brown
(c) No change in colour of FeSO₄
(d) Green solution of FeSO4 slowly turns colourless.

Correct Answer: (a) Green solution of FeSO4 slowly turns brown

Explanation: The green solution of ferrous sulphate slowly turns brown. As aluminium is more reactive than iron, it displaces iron from ferrous sulphate solution.

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Updated on: 13-Mar-2023

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