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MCQ practice · SSC Chemistry Board questions · Chapter 7: Chemical Reactions

Chattogram Board 2022

In the reaction FeCl₂ + Cl₂ = 2FeCl₃-

  1. i. Fe²⁺ is the reductant
  2. ii. Cl₂ is the oxidant
  3. iii. Fe²⁺ is oxidized

Think it through first, then pick an option.

  1. a i and ii
  2. b ii and iii
  3. c i and iii
  4. d i, ii and iii
Answer and explanation

Correct answer: d i, ii and iii

Fe²⁺ gives an electron and is oxidized (reductant); Cl₂ takes it as oxidant.

Why the other options are wrong

  • a i and ii: iii is also true: Fe²⁺ becomes Fe³⁺, an oxidation.
  • b ii and iii: i is left out: Fe²⁺ gives an electron, so it is the reductant.
  • c i and iii: ii is left out: Cl₂ takes electrons, so it is the oxidant.