Medium
Kraft temperature is the temperature
- Abelow which the formation of micelles takes place.
- Bbelow which the aqueous solution of detergents starts freezing.
- Cabove which the formation of micelles takes place.
- Dabove which the aqueous solution of detergents starts boiling.
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Electrophoresis is used
The surface tension of a soap solution is $30 \times 10^{-3} \, N/m$. The work done to increase the surface area of a soap film from $5 \, cm \times 5 \, cm$ to $10 \, cm \times 10 \, cm$ is:
Medium
View SolutionHow many of the following statements are correct $:$
$(i)$ When freshly prepared precipitate are converted into colloidal solution then process is called peptization.
$(ii)$ Lyophilic sol are mostly of inorganic nature.
$(iii)$ Lyophilic sol are highly solvated as particles have great affinity for solvent.
$(iv)$ Lyophobic sols are reversible sols so special methods are required to prepare them.
$(i)$ When freshly prepared precipitate are converted into colloidal solution then process is called peptization.
$(ii)$ Lyophilic sol are mostly of inorganic nature.
$(iii)$ Lyophilic sol are highly solvated as particles have great affinity for solvent.
$(iv)$ Lyophobic sols are reversible sols so special methods are required to prepare them.
Medium
View SolutionThe sol given below with negatively charged colloidal particles is:
In the precipitation of soap,which can be used instead of $NaCl$?
Medium
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