Question

2. a) Aluminium is higher than iron in the reactivity series. To :ee if this was true. Ayesha took similar
sized pieces of aluminium and iron in test tube: She added the same volume of dilute hydrochloric
acid to each. She noticed that:
1. Initially there is more vigorous evolution of ga: from the test tube having iron
2. After a couple of minutes, aluminium starts reacting much faster than iron and evolution of gas is
much more vigorous She was confised. Can you explain to her why this happened
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Answer 1

Explanation:

Aluminium is higher than iron in the reactivity series To see if this was true , Ayesha took similar sized pieces of aluminium and iron in the test tubes .