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Question : 11
Total: 26
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 of1 M KCl 1 M
(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
Solution:
(a) As compared to other colligative properties, its magnitude is large even for very dilute solutions / macromolecules are generally not stable at higher temperatures and polymers have poor solubility / pressure measurement is around the room temperature and the molarity of the solution is used instead of molality.
(b) Because oxygen is more soluble in cold water or at low temperature.
(c) Due to dissociation ofKCl ∕ KCl → K + + Cl − , i
(b) Because oxygen is more soluble in cold water or at low temperature.
(c) Due to dissociation of
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