Redox Reactions MCQ

Test your knowledge with important Redox Reactions MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Redox Reactions MCQs on Bissoy. Bissoy App

• Which of the following do you think is a correct statement?
  ক

  oxidation is caused by a reducing agent

  খ

  the oxidation reaction is a Redox reaction

  গ

  addition of electropositive element is a type of oxidation

  ঘ

  reduction is the addition of hydrogen
• SnCl2 + 2FeCl2 → SnCl4 + 2FeCl2. Which of the following element undergoes oxidation in the reaction given?
  ক

  iron

  খ

  tin

  গ

  chlorine

  ঘ

  ferrous
• SnCl2 + 2FeCl2 → SnCl4 + 2FeCl2 is an example of __________________ reaction.
  ক

  only oxidation

  খ

  only reduction

  গ

  redox

  ঘ

  neither oxidation nor reduction
• Formation of zinc sulphide is an example of ___________
  ক

  reduction

  খ

  oxidation

  গ

  removal of oxygen

  ঘ

  addition of hydrogen
• Oxidation is the same as __________
  ক

  addition of hydrogen

  খ

  removal of oxygen

  গ

  addition of oxygen

  ঘ

  removal of Nitrogen
• Formation of copper from copper iron is an example of a reduction.
  ক

  true

  খ

  false
• Reduction involves in __________ oxidation number.
  ক

  decrease

  খ

  increase

  গ

  independence

  ঘ

  remain constant
• Removal of oxygen from a compound is an example of ________
  ক

  oxidation

  খ

  reduction

  গ

  oxygenation

  ঘ

  dehydrogenation
• A zinc ion is formed due to oxidation.
  ক

  true

  খ

  false
• In the reaction of formation of magnesium oxide magnesium undergoes ________
  ক

  reduction

  খ

  oxidation

  গ

  hydrogenation

  ঘ

  decomposition
• What is the stock notation of mercuric chloride?
  ক

  Mercury

  খ

  Mercuric chloride

  গ

  Chloride

  ঘ

  Mercury (II) chloride
• What is the stock notation of cuprous oxide?
  ক

  copper oxide

  খ

  copper (I) oxide

  গ

  copper 1 oxide

  ঘ

  copper 2 oxide
• What is the average oxidation state of S in Na2S6O6?
  ক

  5

  খ

  0

  গ

  5/2

  ঘ

  2
• What is the oxidation state of N in NH4NO3 (in order)?
  ক

  -3, 5

  খ

  5, -3

  গ

  5

  ঘ

  -3
• What is the oxidation state of C in C3O2?
  ক

  0

  খ

  2

  গ

  -2

  ঘ

  0, 2, 2
• What is the oxidation state of Cr in CrO5?
  ক

  3

  খ

  4

  গ

  5

  ঘ

  6
• In NaH, the oxidation state of hydrogen is _______________
  ক

  2

  খ

  1

  গ

  -1

  ঘ

  0
• Helium element has an Oxidation state of ____________
  ক

  2

  খ

  0

  গ

  1

  ঘ

  -1
• The oxidation number of oxygen in Ozone is 1, -1 and 0.
  ক

  true

  খ

  false
• Can 1/2 be an oxidation number?
  ক

  yes

  খ

  no

  গ

  may be

  ঘ

  cannot say
• What is the volume strength of H2O2 of its 11.2 ml requires 30 ml of 0.5 M 2Cr2O7?
  ক

  35

  খ

  55

  গ

  25

  ঘ

  45
• How many moles of KMnO4 are required for complete oxidation of 1.25 mol Cu2S? Cu2S → Cu+2 + SO2
  ক

  1 mole

  খ

  3 moles

  গ

  2 moles

  ঘ

  5 moles
• How many moles of KCI are required to produce 10 mol Cl2 by the reaction with KCIO3?
  ক

  1.66 mole

  খ

  13.33 mole

  গ

  0.66 mole

  ঘ

  16.66 mole
• What is the concentration of H2O2 solution of 20 ml of H2O2 solution which will react completely with 10 ml of 2 M KMnO4 in acidic medium?
  ক

  1.25 M

  খ

  5 M

  গ

  2.5 M

  ঘ

  25 M
• What is the mass of Fe304 if it reacts completely with 25 ml of 0.3m K2Cr2O7?
  ক

  1 .44 g

  খ

  10.44 g

  গ

  104.4 g

  ঘ

  14.4 g
• What is the volume of 0.05 M KMnO4 which will react with 50 ml of 0.1 M H2S in acidic medium (H2S → S02)?
  ক

  60 ml

  খ

  6 ml

  গ

  12 ml

  ঘ

  120 ml
• What is the mass of K2Cr2O7 required to produce 254 gm I2 from KI solution? Given: K2Cr2O7 + 2KI → 2Cr3+ + I2
  ক

  49 g

  খ

  98 g

  গ

  9.8 g

  ঘ

  4.9 g
• How many number of moles of KMnO4 will react with 180 gm H2C2O4 according to given reaction? KMnO4 + H2C2O4 → 2C02 + Mn2+
  ক

  4/5

  খ

  2/5

  গ

  1/5

  ঘ

  4/3
• Excess of KI reacts with CuSO4 solution and then Na2S2O3 solution is added to it. Which of the statement is incorrect for this reaction?
  ক

  Na2S2O3 is oxidized

  খ

  CuI2 is formed

  গ

  Cu2I2 is formed

  ঘ

  Evolved I2 is reduced
• KMnO4 reacts with oxalic acid according to the equation given below. Here 20 mL of 0.1 M KMnO4 is equivalent to how many mL and molarity of H2C2O4? 2MnO4– + 5C2O4– + 16H+ → 2Mn+1 + 10CO2 + 8H2O
  ক

  20 mL of 0.5 M H2C2O4

  খ

  50 mL of 0.5 M H2C2O4

  গ

  50 mL of 0.1 M H2C2O4

  ঘ

  20 mL of 0.1 M H2C2O4