Q.

Osmotic pressure method is used to determine molar mass of protein, macromolecules like polymers, biomolecules etc., because

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a

osmotic pressure depends upon molality

b

these are very big molecules and have poor solubility

c

osmotic pressure is measured at room temperature

d

All of the above

answer is A.

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Detailed Solution

Osmotic pressure method is preferred for the determination of molar masses of macromolecules such as proteins and polymers because the magnitude of osmotic pressure is large even for very dilute solution and it can be measured at room temperature.

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