Well,organic.HF is a weak acid,due to its property of high intermolecular hydrogen bonding capability.
and H2O self ionises into H+ and OH-,which nullify each other's acidic and basic properties respectively.Also,cn think this way, H++OH-→H2O i.e. reaction of a strong acid with a strong base giving a neutral salt.
why is H2O neutral but HF acidic in nature ?(i mean you analyse the huge difference in properties !!!)
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5 Answers
@AIEEEE .....this is a very fundamental mistake that i also made while facing the qs. for the first time......hydrogen bonding mainly affects boiling point and solubility. intramol h-bond can affect affect acidity but there is no scope of intramol h-bond in any of the given compounds.....so think something else.......the answer is relatively simple !!!
H2O ---> H+ + OH-
HF ---> H+ + F-
F- is weak base than OH- so its conj. acid r different so H2O is weak acid as compared 2 HF
sorry for the mistake.
actually,the bond energy of H-F bond is very high,which increases their bond strength