Question

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Answer 1

Answer:

1. B is highly reactive
2. C is the least reactive
3. B and E form brown layer
4. A E B D C

Answer 2

1. B is highly reactive.
2. C is least reactive metal.
3. B and E form brown layer.
4. B>E>D>A>C the order of reactivity.

Explanation:

1. because it reacts with most of the solutions.
2. beacuse it shows no reaction with any any solution.