Redox Reactions, Class 11 Chemistry Sample Papers

1. There will be total 10  MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. 2NO_2(g) + 2OH^–_(aq) → NO_{2- (aq)} + NO3^–_(aq) + H₂O_(I) is an example of

  Metal displacement Reaction

 Combination Reaction

 Displacement Reaction

 Disproportionation Reaction

Question 1 of 10

2. Pick the odd one out

  Combination redox reaction

 Catalysis redox reaction

 Displacement redox reaction

 Decomposition redox reaction

Question 2 of 10

3. A substance (atom, ion or molecule) which can readily accept electrons from other substances is called

 Oxidising agent

 Reducing agent

 None of them

 both a and b

Question 3 of 10

4. Those reactions in which oxidation and reduction takes place simultaneously are known as

 Redox reaction

 Addition reaction

 Chemical reaction

 None of the above

Question 4 of 10

5. Which of the following is disproportionation reaction?

  CaCO₃ (s) → CaO(s) + CO₂(g)

 C(s) + O₂ (g) → CO₂(g)

 CuSO₄(aq) + Zn (s) → Cu(s) + ZnSO₄ (aq)

 4 KClO₃ → 3KClO₄ + KCl

Question 5 of 10

6. According to classical idea of redox reactions the given example is of

2 Mg_(s) + O_{2 (g)} → 2 MgO_(s)

 Oxidation

 Reduction

 Redox reaction

 All the above

Question 6 of 10

7. In 2Na_(s) + Cl₂ → 2 NaCl _(s) ; The oxidising agent is

 Sodium

 Chlorine

 Sodium chloride

 None of these

Question 7 of 10

8. CuSO_{4 (aq)} + Zn _(s) → Cu (S) + ZnSO_{4 (aq)} is an example of

 Metal displacement reaction

 Disproportionation reaction

 Combination reaction

 Non-metal displacement

Question 8 of 10

9. Nitrous Acid acts as a:

 Reducing agent

 Oxidising agent

 Oxidising as well as reducing agent

 None of the above

Question 9 of 10

10. The reaction 2Na_(s) + 2H₂O_(I) → 2NaOH_(aq) + H2_2(g) is

 Displacement reaction

 Combination reaction

 Double displacement reaction

 Decomposition reaction

Question 10 of 10

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