The correct order of boiling points for hydrogen halides is

A. HCl

B. HBr

C. HF

D. HI

Choose the correct answer from the options given below:

HF > HI > HBr > HCl

All halogens react with hydrogen to give hydrogen halides but affinity for hydrogen decreases from fluorine to iodine. Hydrogen halides dissolve in water to form hydrohalic acids. The acidic strength of these acids varies in the order: HF < HCl < HBr < HI. The stability of these halides decreases down the group due to decrease in bond (H–X) dissociation enthalpy in the order: H–F > H–Cl > H–Br > H–I.

Increasing Order of Boiling points are: HCl < HBr < HI < HF

Reason: B.P. of HF is highest due to Hydrogen bonding and rest order is due to molecular mass.