Which of the following oxy acids of chlorine is least oxidizing in nature"?
Correct answer: A. HOCl
- A. HOCl
- B. HCIO2
- C. HClO3
- D. HClO4
Explanation
The oxidizing power of oxy acids of halogens increases as the oxidation number of the halogen in the compound increases. HOCl has the lowest oxidation number of Chlorine in it (+1), so it is the least oxidizing agent.Oxidation numbers for chlorine in B, C, and D are HClO2 = +3, HClO3 = +5, and HClO4 = +7, which are all higher than +1, so A is the correct option.
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