Q. In which case, the order of acidic strength is not correct?

A) HI>HBr>HCl
B) HIO_{4}>HBrO_{4}>HCIO_{4}
C) HCIO_{4}>HCIO_{3}>HCIO_{2}
D) HF>H_{2}O>NH_{3}
Explanation

(b)
The acidic strength of oxy_{-}acids decreases downwards in a group.
The correct order of acidic strength of oxy – acids of halogen is
HIO_{4}>HBrO_{4}>HIO_{4}

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

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