Redox Reactions, Class 11 Chemistry NCERT Solutions

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

Your comments:

Question 1 of 10

2. Pick the odd one out

Combination redox reaction

Catalysis redox reaction

Displacement redox reaction

Decomposition redox reaction

Your comments:

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

Your comments:

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

Your comments:

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

Your comments:

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

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Question 6 of 10

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

Sodium

Chlorine

Sodium chloride

None of these

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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

Your comments:

Question 8 of 10

9. Nitrous Acid acts as a:

Reducing agent

Oxidising agent

Oxidising as well as reducing agent

None of the above

Your comments:

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

Your comments:

Question 10 of 10

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