(a). What are amphoteric oxides? Give tw...

(a). What are amphoteric oxides? Give two examples of amphoteric oxides.
(b). Choose the acidic oxides, basic oxides and neutral oxids from the following:
`Na_(2)O,CO_(2),CO,SO_(2),MgO,N_(2)O,H_(2)O`
(c). Which of the following are amphoteric oxides:
`MgO,ZnO,P_(2)O_(3),Al_(2)O_(3),NO_(2)`

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