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 Oxidation Number and Oxidation State Multiple Choice Questions
MCQs on Oxidation Number and Oxidation State :
1. Number of moles of K2Cr2O7 reduced by 1 mole of Sn2+ is
(A) 1/6
(B) 1/3
(C) 2/3
(D) 1
Answer
Answer: (b)
2. The oxidation number of carbon in CH2Cl2 is
(A) 0
(B) 2
(C) 3
(D) 5
Answer
Answer: (a)
3. Which of the following will not be oxidised by O3?
(A) KI
(B) FeSO4
(C) KMnO4
(D) K2MnO4
Answer
Answer: (c)
4. The oxidation state of chromium in the final product formed by the reaction between KI and acidified potassium dichromate solution is
(A) +4
(B) +6
(C) +2
(D) +3
Answer
Answer: (d)
5. What products are expected from the disproportionation reaction of hypochlorous acid?
(A) HCl and Cl2O
(B) HCl and HClO3
(C) HClO3 and Cl2O
(D) HClO2 and HClO4
Answer
Answer: (b)
6. Which of the following elements does not show disproportionation tendency?
(A) Cl
(B) Br
(C) F
(D) I
Answer
Answer: (c)
7. What is the oxidation number of chlorine in HClO4?
(A) +3
(B) +5
(C) +7
(D) +8
Answer
Answer: (c)
8. The oxidation state of each Cl in CaOCl2 is
(A) 0
(B) +1
(C) -1
(D) +1, -1
Answer
Answer: (d)
9. The products formed when an aqueous solution of NaBr is electrolysed in a cell having inert electrodes are
(A) Na and Br2
(B) Na and O2
(C) H2, Br2, NaOH
(D) H2 and O2
Answer
Answer: (c)
10. Number of moles of MnO4– required to oxidise one mole of ferrous oxalate completely in the acidic medium will be
(A) 7.5 moles
(B) 0.2 moles
(C) 0.6 moles
(D) 0.4 moles
Answer
Answer: (c)