Redox Reactions MCQ Questions for Class 11 Chemistry Chapter 8 with Answers

We have completed the NCERT/CBSE chapter-wise Multiple Choice Questions for Class 11 Chemistry book Chapter 8 Redox Reactions with Answers by expert subject teacher for latest syllabus and examination. You can Prepare effectively for the exam taking the help of the Class 11 Chemistry Objective Questions PDF free of cost from here. Students can take a free test of the Multiple Choice Questions of Redox Reactions. Each Questions has four options followed by the right answer. Download the Chemistry Quiz Questions with Answers for Class 11 free Pdf and prepare to exam and help students understand the concept very well.

MCQ Questions for Class 11 Chemistry with Answers

Q1. Which of the following processes does not involve either oxidation or reduction?

(i) Formation of slaked lime from quick lime
(ii) Heating Mercuric Oxide
(iii) Formation of Manganese Chloride from Manganese oxide
(iv) Formation of Zinc from Zinc blende

(i) Formation of slaked lime from quick lime

Q2. The oxidation state of chromium in
[Cr (P Ph3) (CO)3] is

(i) + 3
(ii) +8
(iii) Zero
(iv) +5

(iii) Zero

Q3. The tendency of an electrode to lose electrons is known as

(i) Electrode Potential
(ii) Reduction Potential
(iii) Oxidation Potential
(iv) E.M.F.

v

Q4. The loss of electron is termed as

(i) oxidation
(ii) reduction
(iii) combustion
(iv) neutralization

(i) oxidation

Q5. The oxidation number of Xe in BaXeO6 is

(i) 8
(ii) 6
(iii) 4
(iv) 10

(iv) 10

Q6. Oxidation state of osmium (Os) in OsO4 is

(i) +7
(ii) + 6
(iii) +4
(iv) + 8

(iv) + 8

Q7. Which of the following processes does not involve either oxidation or reduction?

(i) Formation of slaked lime from quick lime
(ii) Heating Mercuric Oxide
(iii) Formation of Manganese Chloride from Manganese oxide
(iv) Formation of Zinc from Zinc blende

(i) Formation of slaked lime from quick lime

Q8. Oxidation number of H in NaH, CaH2 and LiH, respectively is

(i) –1,–1, –1
(ii) –1, +1, + 1
(iii) +1, +1, –1
(iv) +1, + 1, + 1

(i) –1,–1, –1

Q9. Pure water is bad conductor of electricity because

(i) It has high boiling point
(ii) It is almost unionised
(iii) Its molecules are associated with H- bonds
(iv) Its pH is 7 at 25°C

(ii) It is almost unionised

Q10. Oxidation number of sodium in sodium amalgam is

(i) +1
(ii) 0
(iii) – 1
(iv) + 2

(ii) 0

Q11. How many millilitres of 0.5 M H2SO4 are needed to dissolve 0.5 g of copper(II)carbonate?

(i) 6.01
(ii) 4.5
(iii) 8.1
(iv) 11.1

(iii) 8.1

Q12. Oxidation number of N in HNO3 is

(i) + 5
(ii) + 3.5
(iii) – 3.5
(iv) –5

(i) + 5

Q13. The oxidation process involves

(i) Increase in oxidation number
(ii) Decrease in oxidation number
(iii) No change in oxidation number
(iv) none of the above

(i) Increase in oxidation number

Q14. The oxidation state of chromium in Cr(CO)6 is

(i) 0
(ii) +7
(iii) -2
(iv) +6

(i) 0

Q15. The number of moles of KMnO4 reduced by one mole of KI in alkaline medium is

(i) One
(ii) Two
(iii) Five
(iv) One fifth.

(ii) Two

Q16. A metal ion M³+ loses 3 electrons, its oxidation number will be

(i) +6
(ii) –3
(iii) +3
(iv) 0

(i) +6

Q17. The ionic mobility of alkali metal ions in aqueous solution is maximum for

(i) Li+
(ii) Na+
(iii) K+
(iv) Rb+

(iv) Rb+

Q18. The oxidation process involves

(i) Increase in oxidation number
(ii) Decrease in oxidation number
(iii) No change in oxidation number
(iv) none of the above

(i) Increase in oxidation number

Q19. The oxide, which cannot act as a reducing agent, is

(i) CO2
(ii) NO2
(iii) SO2
(iv) ClO2

(i)

Q20. Burning of lime to give calcium oxide and carbon dioxide is

(i) An Oxidation Process
(ii) A Reduction Process
(iii) Disproportionation
(iv) Decomposition.

(iv) Decomposition.

Q21. Metals generally react with dilute acids to produce hydrogen gas. Which one of the following metals does not react with dilute hydrochloric acid?

(i) Copper
(ii) Magnesium
(iii) Iron
(iv) Silver

(ii) Magnesium

Q22. In oxygen difluoride, the oxidation number of oxygen is

(i) + 2
(ii) – 2
(iii) – 1
(iv) +1, – 2

(i) + 2

Q23. The oxidation state of I in IPO4 is

(i) +1
(ii) +3
(iii) +5
(iv) +7

(ii) +3

Q24. The colourless solution of silver nitrate slowly turns blue on adding copper chips to it because of

(i) Dissolution of Copper
(ii) Oxidation of Ag+ → Ag
(iii) Reduction of Cu²+ ions
(iv) Oxidation of Cu atoms.

(iv) Oxidation of Cu atoms.

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MCQ Questions for Class 11 Chemistry Chapter wise with Answers

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