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Question

From the following which is not an amphoteric oxide?

A
SiO2
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B
PbO
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C
SnO
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D
Al2O3
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Solution

The correct option is A SiO2
Amphoteric oxides are the oxides which can react both as an acid and as a base.
SiO2 is mild acidic in nature. All others are amphoteric oxides.

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