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Question

Why do HCl, HNO3 , etc. show acidic character in aqueous solutions while solutions of compounds like, C2H5OH and glucose do not show acidic character? Why does an aqueous solution of an acid conducts electricity? [3 MARKS]

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Solution

Each point: 1 Mark

1. A substance will show acidic character if it gives H+ ions when dissolved in water.
2. Among these substances HCl and HNO3 provide H+ ions whereas C2H5OH and glucose do not give H+ ions. So they do not show acidic character.
3. Aqueous solution of an acid conducts electricity because it dissociates to produce ions.

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