Single Choice

The correct order of boiling point is:

A$$HF > HI > HBr > HCl$$
Correct Answer
B$$HF > HBr > HI > HCl$$
C$$HCl > HBr > HI > HF$$
D$$HCl > HI > HBr > HF$$

Solution

Down a group, the atomic radius increases and the surface area increases so there is more area for more Vander Waals forces to form thu,s requiring more energy to break and have a higher boiling point. This gives us $$HI>HBr>HCl$$
But due to very strong H-bonding in $$HF$$, it has the highest boiling point. Thus we have, $$HF>HI>HBr>HCl$$

SIMILAR QUESTIONS

Chemical Bonding

The low density of ice compared to water is due to:

Chemical Bonding

Statement 1 : Conc $$\mathrm{H}_{2}\mathrm{S}\mathrm{O}_{4}$$ is a low volatility and viscos nature acid. Statement2: lt is due to Hydrogen bonding.

Chemical Bonding

Identify the correct statement(s) given below. (a) $$O_2$$ is paramagnetic. (b) $$H_2O$$ is liquid while $$H_2S$$ is gas under given conditions. (c) Boiling point of $$H_2O$$ is abnormally high.

Chemical Bonding

The electronegativities of nitrogen and chlorine are almost same. However, $$NH_3$$ exists as liquid whereas $$HCl$$ as gas due to __________ between the molecules of $$NH_3$$.

Chemical Bonding

Hydrogen bonding plays a central role in the following phenomena :

Chemical Bonding

In solid ice, oxygen atom is surrounded

Chemical Bonding

Hydrogen halide with the highest boiling point is:

Chemical Bonding

Which of the following observations can be explained on the basis of hydrogen bonding? (i) $$H-F$$ has higher boiling point than other halogen acids. (ii) $$H_2O$$ has highest boiling point among hydrides of group 16 elements. (iii) $$NH_3$$ has lower boiling point than $$PH_3$$.

Chemical Bonding

The ice floats on water because:

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