An emulsifier is a substance which
- AStabilises the emulsion
- BHomogenises the emulsion
- CCoagulates the emulsion
- DAccelerates the dispersion of liquid in liquid
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The trend in the coagulating power for the same concentration of $BaCl_2$, $MgCl_2$, and $NaCl$, respectively, is
Match the following: List-$I$ (Sol) List-$II$ (Method of preparation) $A$. $As_2S_3$ $IV$. Double decomposition $B$. $Au$ $I$. Bredig's arc method $C$. $S$ $II$. Oxidation $D$. $Fe(OH)_3$ $III$. Hydrolysis
The correct answer is:
| List-$I$ (Sol) | List-$II$ (Method of preparation) |
|---|---|
| $A$. $As_2S_3$ | $IV$. Double decomposition |
| $B$. $Au$ | $I$. Bredig's arc method |
| $C$. $S$ | $II$. Oxidation |
| $D$. $Fe(OH)_3$ | $III$. Hydrolysis |
Which among the following is a zero-dimensional nanostructure?
Which of the following can form a colloidal sol with water?
The process in which colloids, when subjected to a $DC$ electric field, move towards an electrode is known as:
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