Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2003ChemistryIonic EquilibriumActual

Which one of the following compounds is not a protonic acid?

Options

  1. AB ( OH )₃
  2. BPO ( OH )₃
  3. CSO ( OH )₂
  4. DSO ₂( OH )₁

Correct answer

A. B ( OH )₃

Step-by-step solution

Boric acid is not a protic acid. Boric acid is a weak monobasic acid. It is not a protonic acid but acts as a Lewis acid by accepting electrons from a hydroxyl ion and in turn releases H ⁺ ions Related Theory Although Boric acid contains 3 OH groups yet it can act as monobasic acid rather than tribasic acid, since, only one H ⁺ can be released by a water molecule.

Practice Ionic Equilibrium on Quantrex Academy →

More from Ionic Equilibrium

What amount of NaOH should be dissolved in a 500 mL solution, so that the p ^ H of solution is 12 at 298 K ? 2026Which of the following buffer solutions is used for precipitation of cations of the III A group? 2026The degree of dissociation of weak acid is directly proportional to 2026Which from the following is Lewis base? 2026The solubility of Fe(OH) ₃ is x mole per liter. Find its K_ sp . 2026The Basic buffer solution is made with 0.1 M NH ₄ OH and 0.2 M NH ₄ Cl . If K_b for the base is 1.8 10⁻⁵ , what is the pH of the buffer? 2026The hydrogen ion concentration of the ocean is about 2 10⁻⁹ M . What is the pOH of ocean? 2026Calculate the dissociation constant of a weak monobasic acid if it is 0.04% dissociated in a 0.01M solution. 2026 Full Ionic Equilibrium list All NEET PYQs