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Reaction of Metals with Oxygen (Burnt in Air)

Which of the ...

Question

Which of the following metals on reacting with oxygen forms an amphoteric oxide?

A

Na (Sodium)

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B

Al (Aluminium)

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C

C (Carbon)

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D

K (Potassium)

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Solution

The correct option is B Al (Aluminium)
Aluminium on reaction with oxygen, forms $A l_{2} O_{3}$ . This metal oxide shows both acidic as well as basic behaviour. Such metal oxides which react with both acids as well as bases to produce salts and water are known as amphoteric oxides.

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Reaction of Metals with Oxygen (Burnt in Air)

Standard VIII Chemistry

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