Question

Give reasons for the following
i) Zinc oxide is considered an amphoteric oxide.
ii) Non-metals in general do not displace hydrogen from dilute acids.


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Answer 1

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Reasons: Zinc oxide can react with both acid and bases, that's why it is considered as amphoteric oxide. Only more reactive compound can displace less reactive compound. Since, non-metals are less reactive than hydrogen. So, they can't displace hydrogen from diluted acids.

Answer 2

Reasons: Zinc oxide can react with both acid and bases, that's why it is considered as amphoteric oxide. Only more reactive compound can displace less reactive compound. Since, non-metals are less reactive than hydrogen. So, they can't displace hydrogen from diluted acids.

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