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JEE Main Chemistry question

ChemistrySurface ChemistryJEE Main

Not in JEE Main or NEET syllabus

In a colloidal solution, the dispersed phase and dispersion medium may be solid, liquid or gas. In how many of the following is the physical state of the dispersed phase the same as the physical state of the dispersion medium? Pumice stone, ruby glass, mist, milk, sponge, fog, shaving cream.

Answer: 2

Solution

Tabulating each (dispersed phase, dispersion medium): pumice stone (gas, solid), ruby glass (solid, solid), mist (liquid, gas), milk (liquid, liquid), sponge (gas, solid), fog (liquid,

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Question ID VK-145167