Redox Reactions Quiz - CBSE Class 11 Chemistry

Free practice quiz: Redox Reactions (CBSE Class 11 Chemistry). 43 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. Which of the following is a characteristic of a redox reaction?

   1. It involves the transfer of electrons
   2. There is no change in oxidation states
   3. It only involves covalent bonds
   4. It is an endothermic process
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   Answer: A. It involves the transfer of electrons

2. In a redox reaction, what is oxidized?

   1. The species that gains electrons
   2. The species that loses electrons
   3. The species that remains unchanged
   4. The species that is in solid form
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   Answer: B. The species that loses electrons

3. What is the oxidation state of sulfur in H2SO4?

   1. 0
   2. +4
   3. +6
   4. -2
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   Answer: C. +6

4. What is the final product of the reaction between Na and Cl2?

   1. NaCl
   2. NaCl2
   3. Cl
   4. Na2Cl
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   Answer: A. NaCl

5. Identify the redox pair in the reaction: CuO + H2 -> Cu + H2O.

   1. CuO and Cu
   2. H2 and H2O
   3. Cu and H2O
   4. None of the above
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   Answer: A. CuO and Cu

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