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Which of the following statements is correct regarding the oxidation number of Oxygen?
I. The oxidation number of Oxygen in most compounds is -2.
II. When Oxygen is bonded to Fluorine in compounds like Oxygen difluoride and Dioxygen diflouride, the Oxygen is assigned an oxidation number of +2 and +2 respectively.
III. In peroxide, an Oxygen atom is assigned an oxidation number of -1 and in Superoxide, each oxygen atom is assigned an oxidation number of -1/2.
  • a)
    I only
  • b)
    II only
  • c)
    I and III only
  • d)
    I, II, and III
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Which of the following statements is correct regarding the oxidation n...
The correct option is 3, i.e I and III only. 
  •  The oxidation number of Oxygen in most compounds is -2.
  • When Oxygen is bonded to Fluorine in compounds like Oxygen difluoride(OF2) and dioxygen diflouride(O2F2), the oxygen is assigned an oxidation number of +2 and +1 respectively. Hence, statement II is incorrect.
  • In peroxide, an Oxygen atom is assigned an oxidation number of -1 and in Superoxide, each oxygen atom is assigned an oxidation number of -1/2.
  • Oxidation number denotes the oxidation state of an element in a compound.
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Most Upvoted Answer
Which of the following statements is correct regarding the oxidation n...
- **Oxidation Number of Oxygen**
- **I.** The oxidation number of Oxygen in most compounds is -2. This is a general rule that applies to many compounds where Oxygen is present, such as water (H2O) and carbon dioxide (CO2).
- **II.** When Oxygen is bonded to Fluorine in compounds like Oxygen difluoride (OF2) and Dioxygen difluoride (O2F2), the Oxygen is assigned an oxidation number of +2 and +2 respectively. This is because Fluorine is more electronegative than Oxygen, causing Oxygen to have a positive oxidation number.
- **III.** In peroxide (O22-), an Oxygen atom is assigned an oxidation number of -1, as it has an extra electron compared to its usual -2 oxidation state. In Superoxide (O2-), each oxygen atom is assigned an oxidation number of -1/2. This is due to the presence of a single unpaired electron on each Oxygen atom, resulting in a fractional oxidation state.
Therefore, the correct statement regarding the oxidation number of Oxygen is **I and III only**.
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Which of the following statements is correct regarding the oxidation number of Oxygen?I. The oxidation number of Oxygen in most compounds is -2.II.When Oxygen is bonded to Fluorine in compounds like Oxygen difluoride and Dioxygen diflouride, the Oxygen is assigned an oxidation number of +2 and +2 respectively.III.In peroxide, an Oxygen atom is assigned an oxidation number of -1and in Superoxide, each oxygen atom is assigned an oxidation number of -1/2.a)I onlyb)II onlyc)I and III onlyd)I, II, and IIICorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following statements is correct regarding the oxidation number of Oxygen?I. The oxidation number of Oxygen in most compounds is -2.II.When Oxygen is bonded to Fluorine in compounds like Oxygen difluoride and Dioxygen diflouride, the Oxygen is assigned an oxidation number of +2 and +2 respectively.III.In peroxide, an Oxygen atom is assigned an oxidation number of -1and in Superoxide, each oxygen atom is assigned an oxidation number of -1/2.a)I onlyb)II onlyc)I and III onlyd)I, II, and IIICorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is correct regarding the oxidation number of Oxygen?I. The oxidation number of Oxygen in most compounds is -2.II.When Oxygen is bonded to Fluorine in compounds like Oxygen difluoride and Dioxygen diflouride, the Oxygen is assigned an oxidation number of +2 and +2 respectively.III.In peroxide, an Oxygen atom is assigned an oxidation number of -1and in Superoxide, each oxygen atom is assigned an oxidation number of -1/2.a)I onlyb)II onlyc)I and III onlyd)I, II, and IIICorrect answer is option 'C'. Can you explain this answer?.
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