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Colligative properties have many practic...

Colligative properties have many practical uses , some of them may be :
(P) melting of snow by salt
(Q) desalination of sea water
(R) determine of molar mass
(S) determine of melting point and boiling point of solvent
Actual practicle uses are :

A

P, Q

B

R,S

C

P,Q,R

D

Q,R,S

Text Solution

Verified by Experts

The correct Answer is:
C
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Colligative properties have many pracitical uses, some of them may be: I: Melting of snow by slat II: Desalination of sea water III: Desalination of sea water III: Determination of molar mass IV: Determination of melting point and boiling point of solvent Actual practical uses are :

Define boiling point. Write the formula to determine molar mass of a solute using freezing point depression method.

Addition of non-volatile solute to a solvent always inceases the colligative properties such as osmotic pressure, DeltaP, DeltaT_(b) and DeltaT_(f) . All these colligative properties are direactly propertional to molality if solutions are dilute. The increase in colligative properties on addition of non-volatile solute is due to incease in number of solute particles. For different aqueous solutions of 0.1 N NaCl, 0.1 N urea, 0.1 N Na_(2)SO_(4) and 0.1 N Na_(3)PO_(4) solution at 27^(@)C , the correct statement are : (P) The order of osmotic pressure is, NaCl gt Na_(2)SO_(4) gt Na_(3)PO_(4) gt urea (Q) pi = (DeltaT_(b))/(K_(b)) xx ST for urea solution (R) Addition of salt on ice increases its melting point (S) Addition of salt on ice brings in melting earlier