Question

Regarding the properties of hydrogen halides, which is wrong order?

• A. Percentage of ionic character $HF>HI>HBr>HCl$
• B. Boiling point order $HF>HI>HBr>HCl$
• C. Acidic nature $HI>HBr>HCl>HF$
• D. Melting point order $HI>HF>HBr>HCl$

Answer 1

Answer: (A)

The correct order of % of ionic character is
$\underset{43\%}{\mathrm{HF}}>\underset{18\%}{\mathrm{HCl}}>\underset{12\%}{\mathrm{HBr}}>\underset{15\%}{\mathrm{HI}}$