MCQ on Redox Reaction: Chemistry is considered to be the most scoring subject in NEET JEE Exam. As it is one of the easiest scoring subjects, it is often ignored and undermined a subject. But if you want to get an edge over others, here is a tip, master NEET/JEE Chemistry concepts. Chemistry demands the attention of students in understanding reactions and concrete basic understanding but once done it only gets easier from there. Mastering NCERT syllabus for NEET/JEE Chemistry should be topping your list of to-do for chemistry.

In this post we are providing you MCQ on Redox Reaction, which will be beneficial for you in upcoming NEET, JEE, Medical and Engineering Exams.

MCQ on Redox Reaction

Q1. Find the redox reaction.
a) In the atmosphere, O₃ from O₂ by lighting
b) The reaction of H₂SO₄ with NaOH
c) Both oxidation and reduction reaction
d) Evaporation of water

Q2. Which among the following compounds is the most reducing compound?
a) H₂S
b) HNO₂
c) SnCl₂
d) H₂SO₃

Q3. Which among the following is the strongest oxidising agent?
a) O₃
b) KMnO₄
c) H₂O₂
d) K₂Cr₂O₇

Q4. Find the oxidation state of I in H₄IO₆^–.
a) +7
b) +5
c) +3
d) +1

Q5. H₂SO₄ acts as a strong oxidising agent. In which of the reaction, is it not acting as an oxidising agent?
a) C + 2H₂SO₄ → CO₂ + 2SO₂ + 2H₂O
b) CaF₂ + 2H₂SO₄ → CaSO₄ + 2HF
c) S + 2H₂SO₄ → 3SO₂ + H₂O
d) Cu + 2H₂SO₄ → CuSO₄ + SO₂ + 2H₂O

Q6. In which of the following complex, the oxidation number of Fe is +1?
a) [FeBr₄]^–
b) [Fe(H₂O)₆]^2-
c) Fe₄[Fe(CN)₆]₃
d) [Fe(H₂O)₅NO]SO₄

Q7. Which of the compounds can exist together?
a) FeCl₃, KI
b) HgCl₂, SnCl₂
c) FeCl₃, SnCl₂
d) FeCl₂, SnCl₂

Q8. H₂O₂ changes Cr₂O₇^2- ion to CrO₅ in an acidic medium, the oxidation state of Cr in CrO₅ is ________.
a) +3
b) +6
c) +7
d) +9

Q9. During a reaction of oxalic acid, potassium chlorate and sulphuric acid, the oxidation number of which of the element undergoes a maximum change.
a) H
b) C
c) S
d) Cl

Q10. One mole of ferrous oxalate requires ____ moles of MnO₄^– to get oxidised completely in an acidic medium.
a) 0.2 moles
b) 0.4 moles
c) 0.6 moles
d) 0.8 moles

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