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Manipal MET2014ChemistryStates of Matter

Which one of the following is the weakest acid?

Options

  1. AHF
  2. BHCl
  3. CHBr
  4. DHI

Correct answer

A. HF

Step-by-step solution

HF has the highest bond dissociation enthalpy amongst all the halogen acids. The hydration enthalpy of the fluoride ion is also highest. The former predominates making HF the weakest of the halogen acids.

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