JEE Chemistry · Medium

Mole Concept and Stoichiometry: Number of Moles MCQ

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Number of MolesMediumQuestion 600016

Question

How many moles of electrons are transferred when 0.5 mol of Fe is converted to Fe³⁺?
  1. A
    0.5 mol
  2. B
    1 mol
  3. C
    1.5 mol
    Correct
  4. D
    2 mol

Correct answer

1.5 mol

Explanation

Fe → Fe³⁺ + 3e⁻. So 0.5 mol Fe loses 0.5 × 3 = 1.5 mol of electrons.