Give reasons for the following :
(a) Measurement of osmotic pressure method is preferred for the determination of molar masses of macromolecules such as proteins and polymers .
(b) Aquatic animals are more comfortable in cold water than in warm water .
(c) Elevation of boiling point of `1M KCl` solution is nearly double than that of 1 M sugar solution.

Explanation

For answer consult section 12.
For answer consult section 3.
For answer consult answer to 14.