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JAMB Chemistry 2014 Paper

Question : 16

Total: 45

The basicity of CH₃COOH is

Solution:

Concept:

Basicity of an acid is the number of replaceable hydrogen ions (

\mathrm{H^+}

) it produces per molecule.

Explanation:

Acetic acid,

\mathrm{CH_3COOH}

, has only one ionizable hydrogen atom from the carboxyl group (

-\mathrm{COOH}

It ionizes as:

\mathrm{CH_3COOH \rightleftharpoons CH_3COO^- + H^+}

Therefore, its basicity is 1.

Answer:

B. 1

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