The capability of a buffer solution to resist the change in pH in particular range of pH is called

Correct answer: C. Buffer capacity

  • A. Acidic capacity
  • B. Basic capacity
  • C. Buffer capacity
  • D. None of these

Explanation

The correct answer is Buffer capacity. Buffer capacity is a measure of the efficiency of a buffer in resisting changes in pH upon the addition of an acid or a base. It is a property of a buffer solution that allows it to maintain a relatively constant pH. The terms acidic capacity and basic capacity refer to the ability of a solution to neutralize added acids or bases, respectively, but they do not describe the overall pH stability that buffer capacity provides. None of these is incorrect because the correct answer is listed among the options.

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About Acids, Bases and Salts

Acid and base behaviour is explained through the Bronsted-Lowry transfer of protons and the Lewis donation or acceptance of electron pairs. The topic includes pH, pOH, ionisation and water equilibrium, plus salt formation and hydrolysis, where a salt solution may become acidic, basic or neutral.

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