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Question

A metal less reactive and another metal more reactive than hydrogen are:

A
aluminium and lead
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B
iron and magnesium
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C
copper and tin
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D
copper and mercury
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Solution

The correct option is B copper and tin
Copper, s block elements, mercury, etc.. lies above H in reactivity series and hence, displaces H from its solution. Tin, Gold, Silver, etc.. lies below H in reactivity series.

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