Buffer Solutions MCQ

Test your knowledge with important Buffer Solutions MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Buffer Solutions MCQs at Bissoy

• Which of the following do you think is a correct statement? / d) PH + pOH = 4
  ক

  Ammonium hydroxide / ammonium chloride is an acidic buffer

  খ

  boric acid / borax is an acidic buffer

  গ

  henderson hasselbalch equation is given by pH = pKb + log[salt

  ঘ

  salt
• If the pH of a substance is given by 3 then what is the pOH of the substance?
  ক

  3

  খ

  7

  গ

  14

  ঘ

  11
• Note that the pKa here is given by 4.752, a buffer is made using 0.8 M acetic acid and 1 M Sodium Acetate what do you think its pH is(log10/8 = 0.097)?
  ক

  4.84

  খ

  4.85

  গ

  4.849

  ঘ

  4.846
• If 0.20 mol/L CH3COOH and 0.50 mol/L CH3COO– together make a buffer solution, calculate the pH of the solution if the acid dissociation constant of CH3COOH is 1.8 × 10-5.
  ক

  2.09

  খ

  5.14

  গ

  2.65

  ঘ

  3.98
• Buffer capacity of a buffer is given as two units for a change in pH by Unity. Then what is the number of moles of acid or base, added in one litre of the solution?
  ক

  2

  খ

  0.5

  গ

  1

  ঘ

  4
• What is the buffer capacity if 3 moles are added in 5 litres of the solution to change the pH by 2 units?
  ক

  0.2

  খ

  0.5

  গ

  0.15

  ঘ

  0.3
• Buffer solution is destroyed when _____________
  ক

  addition of weak base

  খ

  addition of strong acid or base

  গ

  addition of weak acid

  ঘ

  addition of a salt
• Which of the following is an equation used to calculate the pH of a buffer solution for an acidic buffer? / b) pOH = pKa + log/ c) pH = pKb + log/ d) pH = pKa + log
  ক

  pH = pKa + log/

  খ

  salt

  গ

  salt

  ঘ

  salt
• Which of the following is not an acidic buffer?
  ক

  Acetic Acid-Sodium acetate

  খ

  Boric acid-borax

  গ

  Ammonium hydroxide-ammonium chloride

  ঘ

  All are acidic buffers
• Carbonic acid and sodium bicarbonate are present in blood as a buffer.
  ক

  true

  খ

  false