Science, asked by mrsmohanjigera15, 1 year ago

plsssssssssssssss answer fast

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Answered by imjyoti454

5

Answer:

potassium and calcium

Explanation:

because it's reactivity is more

so used in displacement reaction

Answered by icewizard380

2

Answer:

Potassium and Calcium

Explanation:

Since Both Potassium and Calcium are placed above aluminium in reactivity series ,

They are more reactive than aluminium and can easily displace aluminium from its aqueous solution.

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