If $1$ mole of a solute dissociates to give $n$ number of ions,then the degree of dissociation $\alpha$ in terms of the van't Hoff factor $i$ is given by:

Which of the following aqueous solutions should have the highest boiling point?

Identify the correct statement from the following.

The correct order of boiling point of the given aqueous solutions is:

$19.5 \ g$ of $CH_2FCOOH$ is dissolved in $500 \ g$ of water. The depression in the freezing point of water observed is $1.0 \ ^\circ C$. Calculate the van't Hoff factor and dissociation constant of fluoroacetic acid.

An aqueous solution is prepared by dissolving $0.1 \ mol$ of an ionic salt in $1.8 \ kg$ of water at $35^{\circ} C$. The salt remains $90 \%$ dissociated in the solution. The vapour pressure of the solution is $59.724 \ mm \ Hg$. Vapor pressure of water at $35^{\circ} C$ is $60.000 \ mm \ Hg$. The number of ions present per formula unit of the ionic salt is . . . . . .