JEE Chemistry · Medium

Mole Concept and Stoichiometry: Equivalent Concept MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Equivalent ConceptMediumQuestion 600040

Question

The equivalent mass of Na₂CO₃ (M = 106 g/mol) in a reaction with HCl (both protons react) is:
  1. A
    106 g
  2. B
    53 g
    Correct
  3. C
    212 g
  4. D
    35.3 g

Correct answer

53 g

Explanation

n-factor of Na₂CO₃ in complete neutralisation = 2 (accepts 2 H⁺). Equivalent mass = 106/2 = 53 g/equiv.