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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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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