Question:
Which of the following is the molecular formula of halous acid of chlorine?
Which of the following is the molecular formula of halous acid of chlorine?
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Hypo...ous (+1), ...ous (+3), ...ic (+5), Per...ic (+7).
Updated On: Apr 26, 2026
- HClO
- HClO$_2$
- HClO$_3$
- HClO$_4$
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The Correct Option is B
Solution and Explanation
Step 1: Nomenclature of Oxoacids
Chlorine forms four types of oxoacids: - $\text{HClO}$: Hypochlorous acid ($+1$) - $\text{HClO}_2$: Chlorous acid ($+3$) - $\text{HClO}_3$: Chloric acid ($+5$) - $\text{HClO}_4$: Perchloric acid ($+7$)
Step 2: Conclusion
The term "halous" refers to the "ous" suffix. For chlorine, "Chlorous acid" corresponds to the formula $\text{HClO}_2$.
Final Answer: (B)
Chlorine forms four types of oxoacids: - $\text{HClO}$: Hypochlorous acid ($+1$) - $\text{HClO}_2$: Chlorous acid ($+3$) - $\text{HClO}_3$: Chloric acid ($+5$) - $\text{HClO}_4$: Perchloric acid ($+7$)
Step 2: Conclusion
The term "halous" refers to the "ous" suffix. For chlorine, "Chlorous acid" corresponds to the formula $\text{HClO}_2$.
Final Answer: (B)
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