All colloidal dispersion have low osmotic pressure. The osmotic pressure is a colligative property and depends on thenumber of solute particles. When number of solute particles in solution is low, the osmotic pressure low.
CHXII05:SURFACE CHEMISTRY
320914
Statement A : The value of colligative properties are of small order for colloids as compared to true solution. Statement B : Number of particles in colloidal solution is comparatively smaller than true solutions.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Colligative properties depend upon number of particles. So, the option (3) is correct.
CHXII05:SURFACE CHEMISTRY
320915
If a true solution is changed to colloidal solution its freezing point
1 Unchanged
2 Increases
3 Decreases
4 May be (2) or (3)
Explanation:
If a true solution is changed to colloidal solution number of particles decreases, hence, freezing point increases.
CHXII05:SURFACE CHEMISTRY
320916
Colloidal solution of gold prepared by different methods are of different colours because of
1 Variable valency of gold
2 Different sizes of colloidal gold particles
3 Different concentration of gold particles
4 None
Explanation:
The colour of gold sol depending on the particle size or diameter of gold particle
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CHXII05:SURFACE CHEMISTRY
320913
All colloidal dispersions have
1 very high osmotic pressure
2 low osmotic pressure
3 no osmotic pressure
4 high osmotic pressure
Explanation:
All colloidal dispersion have low osmotic pressure. The osmotic pressure is a colligative property and depends on thenumber of solute particles. When number of solute particles in solution is low, the osmotic pressure low.
CHXII05:SURFACE CHEMISTRY
320914
Statement A : The value of colligative properties are of small order for colloids as compared to true solution. Statement B : Number of particles in colloidal solution is comparatively smaller than true solutions.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Colligative properties depend upon number of particles. So, the option (3) is correct.
CHXII05:SURFACE CHEMISTRY
320915
If a true solution is changed to colloidal solution its freezing point
1 Unchanged
2 Increases
3 Decreases
4 May be (2) or (3)
Explanation:
If a true solution is changed to colloidal solution number of particles decreases, hence, freezing point increases.
CHXII05:SURFACE CHEMISTRY
320916
Colloidal solution of gold prepared by different methods are of different colours because of
1 Variable valency of gold
2 Different sizes of colloidal gold particles
3 Different concentration of gold particles
4 None
Explanation:
The colour of gold sol depending on the particle size or diameter of gold particle
All colloidal dispersion have low osmotic pressure. The osmotic pressure is a colligative property and depends on thenumber of solute particles. When number of solute particles in solution is low, the osmotic pressure low.
CHXII05:SURFACE CHEMISTRY
320914
Statement A : The value of colligative properties are of small order for colloids as compared to true solution. Statement B : Number of particles in colloidal solution is comparatively smaller than true solutions.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Colligative properties depend upon number of particles. So, the option (3) is correct.
CHXII05:SURFACE CHEMISTRY
320915
If a true solution is changed to colloidal solution its freezing point
1 Unchanged
2 Increases
3 Decreases
4 May be (2) or (3)
Explanation:
If a true solution is changed to colloidal solution number of particles decreases, hence, freezing point increases.
CHXII05:SURFACE CHEMISTRY
320916
Colloidal solution of gold prepared by different methods are of different colours because of
1 Variable valency of gold
2 Different sizes of colloidal gold particles
3 Different concentration of gold particles
4 None
Explanation:
The colour of gold sol depending on the particle size or diameter of gold particle
All colloidal dispersion have low osmotic pressure. The osmotic pressure is a colligative property and depends on thenumber of solute particles. When number of solute particles in solution is low, the osmotic pressure low.
CHXII05:SURFACE CHEMISTRY
320914
Statement A : The value of colligative properties are of small order for colloids as compared to true solution. Statement B : Number of particles in colloidal solution is comparatively smaller than true solutions.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Colligative properties depend upon number of particles. So, the option (3) is correct.
CHXII05:SURFACE CHEMISTRY
320915
If a true solution is changed to colloidal solution its freezing point
1 Unchanged
2 Increases
3 Decreases
4 May be (2) or (3)
Explanation:
If a true solution is changed to colloidal solution number of particles decreases, hence, freezing point increases.
CHXII05:SURFACE CHEMISTRY
320916
Colloidal solution of gold prepared by different methods are of different colours because of
1 Variable valency of gold
2 Different sizes of colloidal gold particles
3 Different concentration of gold particles
4 None
Explanation:
The colour of gold sol depending on the particle size or diameter of gold particle
