NEET Chemistry pH & Buffer Solutions MCQ Question
What is the relationship between the concentration of hydronium ions and hydroxyl ions in pure water at equilibrium?
The product of their concentrations is constant.
The concentration of hydronium ions is always greater than that of hydroxyl ions.
The concentrations of both ions are equal to each other.
The concentration of hydroxyl ions is always zero.
Correct Answer
Detailed Explanation
In pure water, the equilibrium exists with one water molecule donating a proton and another accepting it, leading to a constant product of the concentrations of hydronium and hydroxyl ions.
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