Dr. H.C. Srivastava and SUMEDHA SRIVASTAVA Solutions for Chapter: Solutions, Exercise 2: VERY SHORT ANSWER TYPE QUESTIONS

What do you understand by abnormal molecular mass?

When do we get a higher molecular mass of a substance as compared to the normal value for the substance? 

Define van't Hoff factor.

What is the value of van't Hoff factor for $\mathrm{KCl}$ in dilute aqueous solutions?

Which has the lowest freezing point and why : $1$ molar urea, $1$ molar $\mathrm{NaCl}$ or $1$ molar sodium sulphate?

What is the value of van't Hoff factor when a substance neither dissociates nor associates in the solution?

How is $∆{\mathrm{T}}_{\mathrm{b}}$ related to ${\mathrm{K}}_{\mathrm{b}}$ for the substance whose molecular state changes in the solution?

What do you understand by the terms degree of association and degree of dissociation?