Which of the following metals is/are more reactive than hydrogen?

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Calcium

Aluminium

Zinc

All of the above

answer is D.

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Detailed Solution

Calcium, aluminium and zinc are more reactive than hydrogen.
If we check the order for the reactivity series for the given metals, then it is arranged as potassium, sodium, calcium, magnesium, aluminium, carbon, zinc, iron, tin, lead, hydrogen, copper, mercury, silver, gold. Calcium, aluminium and zinc are more reactive as compared to hydrogen.

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