(a) Why does aluminium not react with water under ordinary conditions?(b) Name two metals which can displace hydrogen from dilute acids.(c) Name two metals which cannot displace hydrogen from dilute acids.
(a) Aluminium does not react with water under ordinary conditions because of the presence of a thin layer of aluminium oxide on its surface.
(b) Sodium and magnesium are the two metals that can displace hydrogen from dilute acids.
(c) Copper and silver cannot displace hydrogen from dilute acids.
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