Q

Which of the following is NOT a characteristic of acids?

RRB NTPC (UG) CBT-1, 7-Aug-25 S-3 2025
✓ Answer: C They release OH- ions in water.
An acid does not release OH- ions in water. An acid is a substance that releases hydrogen ions when dissolved in water or donates protons. A base, conversely, is the substance that releases hydroxide ions in water.