Class 11 Chemistry Redox Reaction MCQs with Answers

Class 11 Chemistry Redox Reaction MCQs with Answers cater to the specific needs of Sainik School aspirants, providing a focused approach to mastering redox reaction principles. Tailored to the class 11 chemistry syllabus, these multiple-choice questions offer clear and concise answers, facilitating effective self-assessment. As redox reactions are foundational in chemistry, this resource ensures a solid grasp of essential concepts.

As students prepare for Sainik School entrance exams, engaging with these MCQs not only enhances exam readiness but also sharpens critical thinking and problem-solving skills. The content aligns with the broader goals of Sainik School education by promoting a comprehensive understanding of redox reactions. By emphasizing clear answers, this resource aids students in identifying areas for improvement, contributing to a holistic approach to exam preparation. Sainik School aspirants benefit from a well-rounded educational experience, preparing them for success in both the entrance exams and future academic pursuits.

Q1. Identify the correct statement (s) in relation to the following reaction:

Zn + 2HCl −−→ ZnCl₂ + H₂

1. Zinc is acting as an oxidant.
2. Chlorine is acting as a reductant.
3. Hydrogen ion is acting as an oxidant.
4. Zinc is acting as a reductant.

Q2. Which of the following elements does not show disproportionation tendency?

1. Cl
2. Br
3. F
4. I

Q3. The exhibition of various oxidation states by an element is also related to the outer orbital electronic
configuration of its atom. Atom(s) having which of the following outermost electronic configurations will exhibit
more than one oxidation state in its compounds:

1. 3s¹
2. 3d¹4s²
3. 3d²4s²
4. 3s²3p³

Q4. Which of the following is not an example of redox reaction?

1. CuO + H₂ −−−→ Cu + H₂O
2. Fe₂O₃ + 3CO −−−→ 2Fe + 3CO₂
3. 2K + F₂ −−→ 2KF
4. BaCl₂ + H₂SO₄ −−→ BaSO₄ + 2HCl

Q5. Which of the following metal displacement reaction will not take place and why?

1. Cu + Mg²⁺ −−→
2. Mg + Cu²⁺ −−→
3. Pb + Ag⁺ −−→
4. Zn + Cu²⁺ −−→

Q6. In which of the following groups of iodine compounds shows increasing order of oxidation states:

1. HlO₄, ICl, I₂, Hl
2. Hl, I₂, IC, HIO₄
3. I₂, HI, HIO₄ HI
4. ICl HIO₄,HI, I₂

Q7. Which of the following is a redox reaction (disproportionation reaction).

Q8 ^. The reaction, 2H₂O(I) −− ^Δ−→2H₂(g) + O₂(g) is an example of:

1. Addition reaction.
2. Decomposition reaction.
3. Displacement reaction.
4. None of these.

Q9. The given reactions such as:

1. Zn + 2HCl → ZnCl₂ + H₂
2. Fe + 2HCl → FeCl₂ + H₂

Are represented as:

1. Displacement of zinc and iron metals.
2. Displacement of only zinc metals.
3. Displacement of only iron metals.
4. Displacement of hydrogen.

Q10. Identify disproportionation reaction:

1. CH₄ + 2O₂ −−→ CO₂ + 2H₂O
2. CH₄ + 4Cl₂ −−→ CCl₄ + 4HCl
3. 2F₂ + 2OH⁻ −−→ 2F⁻ + OF₂ + H₂O
4. 2NO₂ + 2OH⁻ −−→ NO⁻₂ + NO⁻₃ + H₂O

Q11. The rods of transition metals such as copper and zinc where potential difference is generated, are termed as:

1. Electrodes.
2. Cathodes.
3. Anodes.
4. None of these.

Q12. Which of the following electrodes will act as anodes, when connected to Standard Hydrogen Electrode?

1. Al/Al³⁺;E^⊖ = −1.66
2. Fe/Fe³⁺;E^⊖ = −0.44
3. Cu/Cu²⁺;E^⊖ = −0.34
4. F₂(g)/2F⁻(aq);E^⊖ = +2.87

Q13. Which of the following pairs of ions cannot coexist in aqueous solution?

1. Cr²⁺and MnO⁻₄
2. Fe³⁺and Cr₂O²⁻₇
3. Cr2+and I−3
4. Mn²⁺and Cl⁻

Q14. Which of the following reactions represent(s) redox process?

1. Electrochemical process for extraction of highly reactive metals and non-metals.
2. Manufacturing of caustic soda.
3. Corrosion of metals.
4. All of the above.

Q15. The given reaction,CuSO₄ + Zn → Cu + ZnSO₄ is an example of:

1. Metal displacement reaction.
2. Non-metal displacement reaction.
3. Metal addition reaction.
4. Non-metal addition reaction.