Assertion : Out of various colligative properties, only osmotic pressure is used to determine the molecular masses of polymers.
Reason : Ploymer solutions donot possiss a contant boiling point of freezing point.
A. If both assertion are reason are correct and reason is correct explanation for assertion.
B. If both assertion and reason are corrct but reason is not correct explanation for assertion.
C. If assertion is corrct but reason is incorrect.
D. If assertion and reason both are incrrect.
