Which one of the sol acts as a protective colloid?
- A$As_2S_3$
- BGelatin
- C$Au$
- D$Fe(OH)_3$
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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 |
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