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Question

Amphoteric oxides are:


A
SnO,SnO2
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B
GeO,GeO2
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C
both (a) and (b)
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D
None of these
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Solution

The correct option is D $$SnO, SnO_2$$
 Amphoteric oxide is one that reacts with both acids and bases to form salt and water. Thus,  SnO and SnO2 react with both HCl (an acid) and NaOH (base) to give salt and water.

GeO and GeO2 are not well characterized. It is amphoteric dissolving in acids to form germanium(II) salts and in alkali to form trihydroxy germanates or germinates and the GeO has not reacted both the acid and base so GeO is not an Amphoteric.

So the correct answer is A

Chemistry

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