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Amphoteric oxide is...

Amphoteric oxide is

A

CuO

B

`Na_(2)O`

C

`K_(2)O`

D

`Al_(2)O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Oxides of metals which have both acidic as well as basic behaviour are known as amphoteric oxide. Such metal oxides reacts with both acids as well as bases to produces salt and water.
`Al_(2)O_(3) + 6HCl to 2AlCl_(3) + 3H_(2)O`
`Al_(2)O_(3) + 2NaOH to underset("(Sodium aluminate)")(2NaAlO_(2) + H_(2)O)`
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