The amphoteric metal oxide among the following is___.

A l_{2} O_{3}

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N a_{2} O

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K_{2} O

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M g O

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Solution

The correct option is A $A l_{2} O_{3}$
Amphoteric oxides are those that behave as both acidic and basic oxides. There are five metals whose oxides behave as amphoteric ones. These are Be, Al, Zn, Sn, and Pb.

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