In general,for soaps,the concentration of surfactant at $CMC$ is around $mol \ L^{-1}$.
- A$10^{-4}$ to $10^{-3}$
- B$10^{-4}$ to $10^{-1}$
- C$10^{-7}$ to $10^{-4}$
- D$10^{-4}$ to $10^{+2}$
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Match the following types of colloidal systems given in List-$I$ with their respective names given in List-$II$.
List-$I$ List-$II$ $(A)$ Solid dispersed in liquid $(I)$ Emulsion $(B)$ Liquid dispersed in liquid $(II)$ Foam $(C)$ Gas dispersed in liquid $(III)$ Gel $(D)$ Liquid dispersed in solid $(IV)$ Sol - $(V)$ Aerosol
| List-$I$ | List-$II$ |
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| $(D)$ Liquid dispersed in solid | $(IV)$ Sol |
| - | $(V)$ Aerosol |
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