JEE Main 2020 — Surface Chemistry Question with Solution
JEE Main 2020 (04 Sep Shift 1)
Question
Match the following:
| (i) Foam | (a) smoke |
| (ii) Gel | (b) cell fluid |
| (iii) Aerosol | (c) jellies |
| (iv) Emulsion | (d) rubber |
| (e) froth | |
| (f) milk |
Choose an option
Show full solutionCorrect option: C
Correct answer
C(i) – (e), (ii) – (c), (iii) – (a), (iv) – (f)
Step-by-step explanation
| Dispersed Phase | Dispersion medium | Type of colloid | Examples |
| Solid | Solid | Solid sol | Some coloured glasses and gem stones |
| Solid | Liquid | Sol | Paints, cell fluids |
| Solid | Gas | Aerosol | Smoke, dust |
| Liquid | Solid | Gel | Cheese, butter, jellies |
| Liquid | Liquid | Emulsion | Milk, hai cream |
| Liquid | Gas | Aerosol | Fog, mist cloud, insecticide sprays |
| Gas | Solid | Solid sol | Pumice stone, foam rubber |
| Gas | Liquid | Foam | Froth, whipped cream, soap lather |
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This is a previous-year question from JEE Main 2020, covering the Surface Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.