How are colloids classified on the basis of
(i) Physical states of components
(ii) Nature of dispersion medium and
(iii) Interaction between dispersed phase and dispersion medium?
Colloids can be classified on various bases:
(i) On the basis of the physical state of the components (by components we mean the dispersed phase and dispersion medium). Depending on whether the components are solids, liquids or gases, we can have eight types of colloids.
(ii) On the basis of the dispersion medium, sols can be divided as:
| Dispersion medium | Name of sol |
| Water | Aquasol or hydrosol |
| Alcohol | Alcosol |
| Benzene | Benzosol |
| Gases | Aerosol |
(iii) On the basis of the nature of the interaction between the dispersed phase and dispersion medium, the colloids can be classified as lyophilic (solvent attracting) and lyophobic (solvent repelling).
The reaction between A and B is first order with respect to A and zero order with respect to B. Fill in the blanks in the following table:
| Experiment |
A/ mol L - 1 |
B/ mol L - 1 |
Initial rate/mol L - 1 min - 1 |
| I | 0.1 | 0.1 |
2.0 × 10 - 2 |
| II | -- | 0.2 |
4.0 × 10 - 2 |
| III | 0.4 | 0.4 | -- |
| IV | -- | 0.2 |
2.0 × 10 - 2 |
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Colloids can be classified on various bases:
(i) On the basis of the physical state of the components (by components we mean the dispersed phase and dispersion medium). Depending on whether the components are solids, ...
Step-by-step explanation:
• Colloids can be classified on various bases:
•
• (i) On the basis of the physical state of the components (by components we mean the dispersed phase and dispersion medium)
• Depending on whether the components are solids, liquids or gases, we can have eight types of colloids
•
Students often lose marks by skipping steps, writing incomplete explanations, or misunderstanding keywords used in the question.
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