Difficult
Gold numbers of some colloids are: Gelatin $0.005-0.01$,Gum arabic: $0.15-0.25$; Oleate: $0.04-1.0$; Starch: $15-25$. Which among these is a better protective colloid?
- AGelatin
- BStarch
- COleate
- DGum arabic
Explore More
Similar Questions
Match List-$I$ and List-$II$.
List-$I$ List-$II$ $A$. Osmosis $I$. Solvent molecules pass through semi permeable membrane towards solvent side. $B$. Reverse osmosis $II$. Movement of charged colloidal particles under the influence of applied electric potential towards oppositely charged electrodes. $C$. Electro osmosis $III$. Solvent molecules pass through semi permeable membrane towards solution side. $D$. Electrophoresis $IV$. Dispersion medium moves in an electric field.
Choose the correct answer from the options given below:
| List-$I$ | List-$II$ |
| $A$. Osmosis | $I$. Solvent molecules pass through semi permeable membrane towards solvent side. |
| $B$. Reverse osmosis | $II$. Movement of charged colloidal particles under the influence of applied electric potential towards oppositely charged electrodes. |
| $C$. Electro osmosis | $III$. Solvent molecules pass through semi permeable membrane towards solution side. |
| $D$. Electrophoresis | $IV$. Dispersion medium moves in an electric field. |
Choose the correct answer from the options given below:
DifficultJEE MAIN 2023
View SolutionWhich of the following is an example of multimolecular colloids?
Brownian motion is due to
Medium
View SolutionMatch the items in List-$I$ with the items in List-$II$.
List-$I$ List-$II$ $A$. Negatively charged sol $I$. Emulsion $B$. Milk $II$. Kala-azar $C$. Gold number $III$. $FeCl_3$ solution is added to excess $NaOH$ solution $D$. Colloidal antimony $IV$. Protection of colloids
| List-$I$ | List-$II$ |
|---|---|
| $A$. Negatively charged sol | $I$. Emulsion |
| $B$. Milk | $II$. Kala-azar |
| $C$. Gold number | $III$. $FeCl_3$ solution is added to excess $NaOH$ solution |
| $D$. Colloidal antimony | $IV$. Protection of colloids |
Which one of the following is not a surfactant?
DifficultAIIMS 2003
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo