NEET Chemistry: Redox Reactions — MCQ Test 10

Q6. Which element undergoes reduction in the reaction \( \ce{2Na + 2H2O -> 2NaOH + H2} \)?

Q7. What is the oxidation number of sulfur in \( \ce{S4O6^2-} \)?

Q8. Which reaction represents a decomposition redox process?

Q9. Which reaction involves a redox process where the oxidizing agent contains sulfur?

Q10. Which reaction involves a redox process where a single element acts as both oxidizing and reducing agent?

NEET Chemistry — Redox Reactions

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What is the oxidation number of oxygen in \( \ce{O3} \)?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Chemistry preparation, focusing specifically on the chapter Redox Reactions. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Oxidation, Reaction, Following, Reactions, Disproportionation, and Involves.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. What is the oxidation number of oxygen in \( \ce{O3} \)?

  • A. -2
  • B. -1
  • C. +2
  • D. 0

Q2. In the reaction \( \ce{2MnO2 + 2KOH + O2 -> 2K2MnO4 + H2} \), which element is reduced?

  • A. Manganese
  • B. Hydrogen
  • C. Oxygen
  • D. Potassium

Q3. Which of the following reactions is an example of disproportionation?

  • A. \( \ce{2Na + Cl2 -> 2NaCl} \)
  • B. \( \ce{Zn + CuSO4 -> ZnSO4 + Cu} \)
  • C. \( \ce{Cl2 + 2NaOH -> NaCl + NaClO + H2O} \)
  • D. \( \ce{2KClO3 -> 2KCl + 3O2} \)

Q4. Which reaction involves a redox process where oxygen is neither gained nor lost by the element oxidized?

  • A. \( \ce{2Na + O2 -> Na2O2} \)
  • B. \( \ce{S + O2 -> SO2} \)
  • C. \( \ce{2FeSO4 + I2 -> Fe2(SO4)3 + 2HI} \)
  • D. \( \ce{2CuO + C -> 2Cu + CO2} \)

Q5. In \( \ce{2FeCl3 + H2S -> 2FeCl2 + S + 2HCl} \), which species contains the element reduced?

  • A. \( \ce{H2S} \)
  • B. \( \ce{S} \)
  • C. \( \ce{FeCl3} \)
  • D. \( \ce{HCl} \)

+ 5 more questions in the actual test

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