CBSE 2022 · Region 2 · Set 1 · Q8 · 3 marks
Write three differences between Lyophobic sol and Lyophilic sol.(b)Write the dispersed phase and dispersion medium of 'milk'.(ii)What is the cause of Brownian movement in colloidal particles ?(iii)Why does physisorption decrease with increase in temperature?
Write three differences between Lyophobic sol and Lyophilic sol.
(b)
Write the dispersed phase and dispersion medium of 'milk'.
(ii)
What is the cause of Brownian movement in colloidal particles ?
(iii)
Why does physisorption decrease with increase in temperature?
Marking-scheme solution
(a)
| Lyophobic Sol | Lyophilic Sol |
| Solvent repelling | Solvent loving |
| Irreversible | Reversible |
| Unstable | Stable |
| Easy to coagulate | Difficult to coagulate |
Surface ChemistryClassification of ColloidsUnderstandshort_answereasy
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CBSE Class 12 Chemistry past-paper question from the 2022board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.