NEET Chemistry is the very imporatant paper in the Medical Entrance EXAM. So these NEET Chemistry MCQs with Answers for all Concepts as per the new syllabus. Practice daily with these NEET Chemistry objective questions on air pollution. NEET Chemistry Redox Reaction and Method for Balancing Redox Reaction Multiple Choice Questions
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 H2 gas 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)