NEET Chemistry Ionic Equilibrium MCQ Question
Consider a diagram showing the equilibrium system of water dissociation: H2O(l) + H2O(l) ⇌ H3O+(aq) + OH-(aq). Which of the following labels correctly identifies the role of water molecules in this ionic equilibrium?

Water acts as both an acid and a base.
Water acts only as an acid.
Water acts only as a base.
Water acts as a neutral molecule.
Correct Answer
Detailed Explanation
In the given equilibrium, water acts both as an acid (donating a proton) and as a base (accepting a proton), demonstrating its amphoteric nature.
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