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Affinity for hydrogen decreases in the g...

Affinity for hydrogen decreases in the group from fluorine to iodine. Which of the halogen acids should have highest bond dissociation enthalpy ?

A

HF

B

HCl

C

HBr

D

HI

Text Solution

Verified by Experts

The correct Answer is:
A
HF has the highest bond dissociation enthalpy (`574 " kJ mol"^(-1))` due to smallest bond length and presence of intermolecular hydrogen bonding.
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DINESH PUBLICATION-THE P-BLOCK ELEMENTS -N.C.E.R.T. Exemplar Problems
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