Question

Which of the following statement is not true?

• A. HOCl is a stronger acid than HOBr
• B. HF is a stronger acid than HCl
• C. Among halide ions, iodide is the most powerful reducing agent
• D. Fluorine is the only halogen that does not show a variable oxidation state

Answer 1

Answer: (B)

Due to strong H-F bond proton is not easily removed due to higher electronegativity (EN) of F, more bond dissociation energy required.
Acidic nature $ \propto \frac{1}{ Bond \, dissociation \, energy} $
So, HF is not a stronger acid than $HCl$