NDA 2026 Chemistry question
Consider the following statements regarding oxidation numbers : I. The oxidation number of oxygen in peroxides and superoxides is assigned as –1 and –1/2 respectively. II. In all its compounds, fluorine has an oxidation number of –1. III. In a reduction half-reaction, the oxidation number of the reductant decreases. Which of the statements given above are correct ?
Answer: (A)
Solution
Oxygen has the oxidation number –1 in peroxides and –1/2 in superoxides, and fluorine, the most electronegative element, is –1 in all its compounds. In a
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