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Question

Which metals can’t displace hydrogen from an acid and why? [3 MARKS]


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Solution

Metals : 1.5 Marks
Reason : 1.5 Marks

Cu, Au, Ag and Pt are metals which can’t displace hydrogen from an acid. The reason for such a property is that these metals are placed lower in than hydrogen in the reactivity series. Since, they are less reactive than hydrogen, they cannot displace hydrogen from its compound.


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