MCQs on Redox Reaction and Method for Balancing Redox Reaction

NEET  Chemistry is the scoring paper in the medical entrance examination. Here, you will discover the NEET Chemistry MCQ Questions for all Concepts as per the latest syllabus. Practice more on a regular basis with these NEET Chemistry objective questions on air pollution and improve your subject knowledge & problem-solving skills along with time management. NEET Chemistry Redox Reaction and Method for Balancing Redox Reaction Multiple Choice Questions make you feel confident in answering the question in the exam & increases your scores to high.

MCQs on Redox Reaction and Method for Balancing Redox Reaction

1. Which of the following represents a redox reaction?
(a) NaOH + HCl → NaCl + H2O
(b) BaCl2 + H2SO4 → BaSO4 + 2HCl
(c) CuSO4 + 2H2O → Cu(OH)2 + H2SO3
(d) Zn + 2HCl → ZnCl2 + H2

Answer

Answer: (d)


2. Which reaction involves neither oxidation nor reduction?
(a) CrO42- -→ Cr2O72-
(b) Cr → CrCl3
(c) Na → Na+
(d) 2S2O32- → S4O62-

Answer

Answer: (a)


3. Zn gives Hgas with H2SO4 and HCl but not with HNO3 because
(a) Zn acts as an oxidising agent when it reacts with HNO3
(b) HNO3 is a weaker acid than H2SO4 and HCl
(c) In electrochemical series, Zn is above hydrogen
(d) NO3 is reduced in preference to hydronium ion

Answer

Answer: (d)


4. A compound of Xe and F is found to have 53.5% of Xe. What is the oxidation number of Xe in this compound?
(a) -4
(b) 0
(c) +4
(d) +6

Answer

Answer: (d)


5. A solution contains Fe2+, Fe3+ and I ions. This solution was treated with iodine at 35oC. Eo for Fe3+/Fe2+ is 0.77V and Eo for I2/2I = 0.536V. The favourable redox reaction is
(a) I2 will be reduced to I
(b) there will be no redox reaction
(c) I will be oxidised to I2
(d) Fe2+ will be oxidised to Fe3+

Answer

Answer: (c)


6. One mole of N2H4 loses 10 moles of electrons to form a new compound y. Assuming that all nitrogen appears in the new compound, what is the oxidation state of nitrogen in y.
(a) -1
(b) -3
(c) +3
(d) +5

Answer

Answer: (c)


7. The equivalent mass of oxidising agent in the following reaction is

SO2 + 2H2S → 3S + 2H2O
(a) 32
(b) 64
(c) 16
(d) 8

Answer

Answer: (c)


8. In the reaction

3Br2 + 6CO32- + 3H2O → 5Br + BrO3 + 6HCO3
(a) bromine is oxidised and carbonate is reduced
(b) bromine is reduced and water is oxidised
(c) bromine is neither reduced nor oxidised
(d) bromine is both reduced and oxidised

Answer

Answer: (d)


9. Which of the following cannot function as an oxidising agent?
(a) I
(b) Si(s)
(c) NO3(aq)
(d) Cr2O72-

Answer

Answer: (a)


10. The oxidation number of Pt in [Pt(C2H4)Cl3]– is
(a) +1
(b) +2
(c) +3
(d) +4

Answer

Answer: (b)


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