NEET Chemistry: Redox Reactions — Practice Set 13

Q1. In the reaction \( \ce{I2 + 5Cl2 + 6H2O -> 2HIO3 + 10HCl} \), how many electrons are transferred per iodine atom?

Q2. In the reaction \( \ce{2KI + H2O2 -> I2 + 2KOH} \), which species acts as the oxidizing agent?

Q3. In the reaction \( \ce{2Cr + 3CuCl2 -> 2CrCl3 + 3Cu} \), which species is reduced?

Q4. What is the change in oxidation number of sulfur in the reaction \( \ce{2H2S + O2 -> 2S + 2H2O} \)?

Q5. What is the oxidation number of technetium in \( \ce{Tc2O7} \)?

Q6. In the reaction \( \ce{Zn + CuSO4 -> ZnSO4 + Cu} \), which species is reduced?

Q7. Which reaction demonstrates reduction by the removal of oxygen from a metal oxide without hydrogen involvement?

Q8. What is the oxidation number of sulfur in \( \ce{S2O3^2-} \)?

Q9. Which reaction involves the addition of oxygen to a metal?

Q10. What is the oxidation number of phosphorus in \( \ce{PCl3} \)?

Chemistry — Redox Reactions

Set 13 of 20

15:00

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1Question 1 of 10
Medium

In the reaction \( \ce{I2 + 5Cl2 + 6H2O -> 2HIO3 + 10HCl} \), how many electrons are transferred per iodine atom?