Hydrogen can be prepared by the action of dil | vedclass

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(B) Hydrogen cannot be prepared by the action of dil. $H_2SO_4$ on copper or mercury as these metals are less reactive than hydrogen and cannot displa

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Iron

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(B) Hydrogen cannot be prepared by the action of dil. $H_2SO_4$ on copper or mercury as these metals are less reactive than hydrogen and cannot displace it from acids.In the case of lead,the reaction stops after some time due to the formation of an insoluble layer of $PbSO_4$ on the metal surface.Iron $(Fe)$ reacts readily with dil. $H_2SO_4$ to produce hydrogen gas: $Fe(s) + H_2SO_4(aq) \rightarrow FeSO_4(aq) + H_2(g)$.

Hydrogen can be prepared by the action of dil. $H_2SO_4$ on

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