Question

10. Give the names and formulae of (a) two acidic oxides, and (b) two basic oxides.​

Answer 1

Sodium and magnesium oxides are alkaline. Aluminium oxides are amphoteric (reacting both as a base or acid). Silicon, phosphorus, sulfur, and chlorine oxides are acidic. Some non-metal oxides, such as nitrous oxide (N2O) and carbon monoxide (CO), do not display any acid/base characteristics.

A basic oxide reacts with water to give a base. Examples include the oxide of most metals, such as Na2O, CaO, BaO. These are basic in nature. Calcium oxide reacts with water and produces calcium hydroxide, a base.

Answer 2

Acidic oxide :- Carbon dioxide with the formula CO2 and sulphur dioxide with the formula SO2 are two acidic oxides

Basic oxide :- Aluminum oxide with formula Al2O3 and Calcium oxide Ca(OH)2

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