Which of the following is the correct order of acidic strength?(a) HClO4 HClO3 > HClO2(d) HClO2 > HClO4 > HClO3This question was addressed to me in an interview.The doubt is from P-Block Elements topic in chapter P-Block Elements of Chemistry – Class 12

Which of the following is the correct order of acidic strength?(a) HCl

1.	Which of the following is the correct order of acidic strength?(a) HClO4 < HClO4 < HClO2(b) HClO4 = HClO3 = HClO2(c) HClO4> HClO3 > HClO2(d) HClO2 > HClO4 > HClO3This question was addressed to me in an interview.The doubt is from P-Block Elements topic in chapter P-Block Elements of Chemistry – Class 12
Answer» Correct OPTION is (c) HClO4> HClO3 > HCLO2 The explanation is: ACIDIC strength of OXOACIDS of the same halogen increases with increase in the oxidation number of the halogen. The oxidation number of halogens in HClO4, HClO3 and HClO2 is 7, 5 and 3 so the Acidic strength of HClO4 is greatest followed by HClO4 and HClO2.

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