Q39 of 400 Page 133

What are amphoteric oxides? Give two examples of amphoteric oxides.

Amphoteric oxide are those metals which acidic as well as basic behavior. The two examples of amphoteric oxides are Aluminium Oxide and Zinc Oxide.

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38 With the help of examples, describe how metal oxides differ from non-metal oxides. 38 Which of the following elements would yield:

(i) an acidic oxide,


(ii) a basic oxide, and


(iii) a neutral oxide?

 39 Choose the acidic oxides, basic oxides and neutral oxides from the following:

Na2O; CO2; CO; SO2; ; N2O; H2O.

 39 Which of the following are amphoteric oxides:

MgO, ZnO, P2O3, Al2O3, NO2