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P-1 Metallurgy — Science STD 10 — Question

Maharashtra BoardEnglish MediumSTD 10ScienceP-1 Metallurgy5 Marks
Question
Aluminium oxide is called an amphoteric oxide.
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Answer

(i) An oxide which shows both acidic as well as basic properties is called an amphoteric oxide.
(ii) Metal oxides are usually basic in nature.
(iii) But some metal oxides like aluminium oxide react both with acids as well as bases to produce salt and water.
(iv) Aluminium oxide shows both acidic as well as basic properties.
(v) Hence, aluminium oxide is called an amphoteric oxide.

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