alleryStart learning →The ion responsible for the acidic nature of a solution is the
Ahydroxide ion
Bcarbonate ion
Cammonium ion
Dhydronium ion
Answer & Solution
Correct answer: D. hydronium ion
1. Acids release H+ ions in water, but bare H+ cannot exist alone.
2. Each H+ attaches to water: H+ + H2O gives H3O+.
3. This hydronium ion is what makes a solution acidic.
_Source: AP/TS SCERT Class 10 Physical Science, "Acids, Bases and Salts"_
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