Home
Class 12
CHEMISTRY
Addition of non-volatile solute to a sol...

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

A

Q, R, S

B

P, Q, S

C

P, Q, R

D

R, S

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • LIQUID SOLUTIONS

    GRB PUBLICATION|Exercise 7|12 Videos

  • LIQUID SOLUTIONS

    GRB PUBLICATION|Exercise 10|12 Videos

  • LIQUID SOLUTIONS

    GRB PUBLICATION|Exercise 39|4 Videos

  • IONIC EQUILIBRIUM

    GRB PUBLICATION|Exercise All Questions|526 Videos

  • METALLUGY

    GRB PUBLICATION|Exercise Subjective type|1 Videos

Similar Questions

Explore conceptually related problems

Name four important colligative properties of solutions of non-volatile solutes.

Solution||Colligative properties

Knowledge Check

  • For different aqueous solutions of 0.1N urea, 0.1N NaCl, 0.1N Na_(2)SO_(4) and 0.1N Na_(3)PO_(4) solution at 27^(@)C , select the correct statements:

    A
    The order of osmotic pressure is:
    `NaCl gt Na_(2)SO_(4) gt Na_(3)PO_(4) gt "urea"`
    B
    `pi = (Delta T_(b))/(K_(b)) xx ST` for urea solution
    C
    Addition of salt on ice increases its melting point
    D
    Addition of salt on ice brings in melting of ice earlier

  • 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 : 1g mixture of glucose and urea present in 250 mL aqueous solution shows an osmotic pressure of 0.74 atm at 27^(@) C . Assuming solution to be dilture, which are correct ? (P) Percentage of urea in solute mixture is 17.6 (Q) Relative lowering in vapour pressure of this solutions is 5.41 xx 10^(-4) . (R) The solution will boil at 100.015^(@)C , if K_(b) of water is 0.5 K "molality"^(-1) (S) If glucose is replaced by same amount of sucrose, the solution will show higher osmotic pressure at 27^(@)C (T) If glucose is repalced by same amount of NaCl , the solution will show lower osmotic pressure at 27^(@)C .

    A
    P, R
    B
    P, Q, R, T
    C
    Q, S, T
    D
    P, S, T

  • Addition of a non-volatile solute in a volatile ideal solvent

    A
    Increases the vapoure pressure of the solvent Decreases the vapour pressure of the solvent
    B
    Decreases the vapoure pressure of the solvent
    C
    Decreases the boililng point of the solvent
    D
    Increases the freezing point of the solvent

    • Similar Questions

    Explore conceptually related problems

    The colligative properties of solutions

    Solution||Colligative properties

    Solution||Colligative properties

    Solution||Colligative properties

    The colligative properties of a solution are

    Home
    Profile