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Although metals form basic oxides, which...

Although metals form basic oxides, which of the following metals form an amphoteric oxide ?

A

Na

B

Ca

C

Al

D

Cu

Text Solution

Verified by Experts

The correct Answer is:
C
Oxides react with both acids as well as bases to produce salts and water are known as amphoteric oxides. Aluminium oxide reacts in the following manner with acids and bases -
`Al_(2)O_(3) + 6HCI rarr 2AlCl_(3) + 3H_(2)O`
`Al_(2)O_(3) + 2NaOH rarr 2NaAlO_(2) + H_(2)O`
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