Difficult
The correct option among the following is:
- AColloidal particles in lyophobic sols can be precipitated by electrophoresis.
- BBrownian motion in colloidal solution is faster if the viscosity of the solution is very high.
- CColloidal medicines are more effective because they have small surface area.
- DAddition of alum to water makes it unfit for drinking.
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Similar Questions
The density of gold is $19 \, g/cm^3$. If $1.9 \times 10^{-4} \, g$ of gold is dispersed in $1 \, L$ of water to form a sol of spherical gold particles of radius $10 \, nm$,find the number of gold particles per $nm^3$ in the sol.
Medium
View Solution$A$ $42.12 \% (w/v)$ solution of $NaCl$ causes precipitation of a certain sol in $10 \, hours$. The coagulating value of $NaCl$ for the sol is $.....$
[Given : Molar mass : $Na = 23.0 \, g \, mol^{-1} ; Cl = 35.5 \, g \, mol^{-1}]$
[Given : Molar mass : $Na = 23.0 \, g \, mol^{-1} ; Cl = 35.5 \, g \, mol^{-1}]$
DifficultJEE MAIN 2022
View SolutionWhich of the following has the minimum coagulating power?
Medium
View SolutionMatch the following:
List-$I$ (Colloid Type) List-$II$ (Example) $A$. Sol $I$. Cloud $B$. Foam $II$. Whipped cream $C$. Gel $III$. Paint $D$. Aerosol $IV$. Butter
The correct answer is:
| List-$I$ (Colloid Type) | List-$II$ (Example) |
|---|---|
| $A$. Sol | $I$. Cloud |
| $B$. Foam | $II$. Whipped cream |
| $C$. Gel | $III$. Paint |
| $D$. Aerosol | $IV$. Butter |
The correct answer is:
When $Fe(OH)_3$ is treated with $FeCl_3$ solution,a reddish-brown solution is formed. The process involved is:
Easy
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