First slide

Chemical properties

Question

Correct order of boiling points of hydrogen halides is

Easy

A

HF > HCl > HBr > HI
B

HF < HCl < HBr < HI
C

HCl < HBr < HI < HF
D

HF < HBr < HI < HCl

Solution

Hydrogen halides are gases. Hydrogen fluoride can be liquified easily. Boiling point of hydrogen fluoride is higher than that of other hydrogen halides. This is because of intermolecular hydrogen bonding in hydrogen fluoride. Most volatile hydrogen halide is hydrogen chloride.

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