JEE Main 2012 Chemistry question
The freezing point of a 1.00 m aqueous solution of HF is found to be −1.91°C. The freezing point constant of water, is 1.86 K kg . The percentage dissociation of HF at this concentration is
Answer: (4)
Solution
. For HF → H⁺ + F⁻, , i.e. 2.7%, option (4).