Heat of neuralisation is amount of heat evolved or absorbed when `1g-` equivalent of an acid reacts with `1g-` equivalent of a base in dilute solution . If weak acid or weak bae are neutralised, the heat released during neutralisation is somewhat lesser than `-13.7kcal` or `-57.27 kJ` . Heat of neutralisation is also referred as heat of formation of water from `H^(+)` and `OH^(-)` ions `i.e., H^(+)+OH^(-) rarr H_(2)O, DeltaH=-13.7kcal. `
Heat of neutralisatio of `HF` and acetic acid respectively are `(` in `kcal):`

Options

A. 2 , 3
B. 1, 4
C. 1 , 2 , 3
D. 1 , 3

Answer

D