What is the pH of a solution of a strong monoprotic acid like HCl?

Answer and explanation

Correct answer: A. 6

  1. Step 1: A strong monoprotic acid completely ionizes, providing a hydrogen ion concentration equal to the acid molarity: .
  2. Step 2: Apply the logarithmic relation .
  3. Step 3: Substituting the concentration gives .
Answer
6.
Why not the others: 7 underestimates hydrogen ion acidity; 5 overestimates hydrogen ion concentration; 8 is the pOH () rather than pH.

Practise more Ionic equilibrium.

Free questions with an explanation for every one, and full timed JEE Main mock tests.

All Ionic equilibrium questionsTake a mock test

More Ionic equilibrium questions