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JAMB Chemistry 2016 Paper

Question : 27

Total: 50

An example of an acidic oxide is

Solution:

Concept:

Acidic oxides are oxides of nonmetals that react with water to form acids or with bases to form salts.

Explanation:

\mathrm{SO}_2

is a nonmetal oxide.

It dissolves in water to form sulfurous acid:

\mathrm{SO}_2 + \mathrm{H}_2\mathrm{O} \rightarrow \mathrm{H}_2\mathrm{SO}_3

NO and CO are neutral oxides.

CuO is a basic oxide because it is a metal oxide.

Answer:

\mathrm{SO}_2

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