Q. Which of the following is more acidic in nature?

A) HCIO
B) HCIO_{2}
C) HCIO_{3}
D) HCIO_{4}
Explanation

(d)
The acidity of oxyacids of halogens increases with increase in oxidation state of halogen.
Oxidation state of Cl in HCIO=+1
Oxidation state of Cl in HCIO_{2}=+3
Oxidation state of Cl in HCIO_{3}=+5
Oxidation state of Cl in HCIO_{4}=+7
Hence, HCIO_{4} has highest acidity among oxyacids of chlorine.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.