JEE Advanced Chemistry: Redox Reactions Practice Questions

12 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

  1. Q1.
    What is the oxidation state of sulfur in the sulfuric acid molecule?
    Easy
  2. Q2.
    In the reaction between hydrogen peroxide and potassium permanganate in acidic medium, what is the role of hydrogen peroxide?
    Easy
  3. Q3.
    Which element in the reaction 2Na + Cl2 yields 2NaCl undergoes oxidation?
    Easy
  4. Q4.
    What is the oxidation number of manganese in the permanganate ion?
    Easy
  5. Q5.
    Which of the following reactions involves both oxidation and reduction of the same element?
    Medium
  6. Q6.
    Calculate the equivalent weight of K2Cr2O7 in an acidic medium where it acts as an oxidizing agent.
    Medium
  7. Q7.
    In the reaction 3Br2 + 6CO3(2-) + 3H2O yields 5Br- + BrO3- + 6HCO3-, what is the change in the oxidation state of bromine?
    Medium
  8. Q8.
    Which of the following species can act as both an oxidizing agent and a reducing agent?
    Hard
  9. Q9.
    Calculate the n-factor of FeS2 in the reaction FeS2 + O2 -> Fe2O3 + SO2.
    Hard
  10. Q10.
    Consider the reaction of potassium permanganate with hydrogen peroxide in acidic medium. If 10 mL of 0.1 M KMnO4 reacts completely with 10 mL of H2O2, what is t
    Hard
  11. Q11.
    In the reaction 3Br2 + 6CO3(2-) + 3H2O -> 5Br- + BrO3- + 6HCO3-, what is the change in oxidation state of bromine?
    Hard
  12. Q12.
    What is the equivalent weight of P4 in the reaction P4 + 3OH- + 3H2O -> PH3 + 3H2PO2-?
    Hard

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