Q

Which of the following statements is true about the pH of a neutral solution at 25°C?

JE CBT-1, 16-Dec-24 S-3 2024
✓ Answer: D The pH is equal to 7.
The pH of a neutral solution at 25°C is 7. This is because the concentrations of hydrogen ions and hydroxide ions are equal. The pH of a neutral solution can change with temperature because the concentration of hydrogen ions and hydroxide ions in water varies with temperature, as the equilibrium between water dissociation changes with temperature, leading to more hydrogen ions being produced.
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