Question

A metal that cannot displace hydrogen gas from acids

Answer 1

Mercury cannot displace hydrogen because it is less reactive than hydrogen

Answer 2

Answer:

Metals that lie below hydrogen in reactivity series of metals such as copper, gold , silver. Iron and aluminium will displace hydrogen from dilute acids as they more reactive then hydrogen. Mercury and copper cannot displace hydrogen from dilute acids as they are less reactive than hydrogen

Explanation:

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