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Which of the following oxides is amphote...

Which of the following oxides is amphoteric is nature ?

A

CaO

B

`CO_(2)`

C

`SiO_(2)`

D

`SnO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
Oxide of metalloid is generally amophoteric in character . Out of the given four oxide only `SnO_(2)` is amphoteric in character because `SnO_(2)` dissolves both in acids and bases.
`SnO_(2)+2HCl to SnCl_(4) +2H_(2)O`
`SnO_(2)+2NaOH to Na_(2)SnO_(3)+H_(2)O`
on the other hand `SiO_(2)` dissolves only in bases `SiO_(2)+2NaOH to Na_(2)SiO_(3)+H_(2)O`
Thus `SiO_(2) ` is not considered amphoteric in nature.
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