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Enthalpy of formation of HF and HCl are ...

Enthalpy of formation of HF and HCl are -161 kJ and -92 kJ respectively. Which of the following statements is incorrect?

A

HCl is more stable than HF

B

HF and HCl are exothermic compounds

C

the affinity of fluorine to hydrogen is greater than the affinity of chlorine to hydrogen than the affinity of chlorine to hydrogen

D

HF is more stable than HCl.

Text Solution

Verified by Experts

The correct Answer is:
A
More the energy libertaed during the formation of one mole of a compound, more will be its stability
Or
Higher the enthalpy (-ve value) of formation of a compound greater will be stability of the compound. HF is more stable than HCl.
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