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Metals replace hydrogen from dilute acids, whereas non-metals do not. Why?​

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ՏTIO ::::

Metals replace hydrogen from dilute acid, whereas non-metals do not. Why?

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Hydrogen from dilute acids can only be replaced if electrons are supplied to H+ IONS of the acid.

H2SO4(AQ) ---------) 2H+(aq) + SO4²‐(aq)

2H+ + 2e‐ ---------) H2(G)

HCl(aq) ----------) H+(aq) + Cl‐(aq)

H+ + e‐ ----------) H

2H ----------) H2(g)

Metals have a tendency to lose electrons and HENCE they supply electrons, i.e., they are electron donors. That is why metals displace hydrogen from dilute acids.

On the other hand, non-metal is an electron acceptor. It cannot supply electrons to H+ and hence, it does not replace hydrogen from dilute acids.

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