Question

Explain Reaction of Metals with Acid.​

Answer 1

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Metals which are reactive than hydrogen displace hydrogen from its dilute acids and produce respective metal salts and hydrogen gas.

Example: Metal+dilute acid→Salt+Hydrogen gas

2Na(s)+2HCl(dilute)→2NaCl(aq)+H2(g)

2K(s)+H2SO4(dilute)→K2SO4(aq)+H2(g)

Metals which are less reactive than hydrogen cannot displace hydrogen from its acids and hence no reaction takes place.