Chemistry Equilibrium DUHS 2024
PMDC Verified Question 24 of 102
(Out of syllabus)
A colloidal solution of liquid into liquid is known as:
A
Solid foam
B
Foam
C
Fog
D
Emulsion
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Emulsion
Concept:

Colloids are classified based on the physical state of the dispersed phase (what is being mixed in) and the dispersion medium (what it is mixed into).

Solution:

  • When tiny droplets of one liquid (dispersed phase) are scattered throughout another immiscible liquid (dispersion medium), the resulting mixture is highly specific.


  • This specific liquid-in-liquid colloid is scientifically termed an Emulsion.


  • Common everyday examples include milk (liquid fat dispersed in water) and mayonnaise.


Why other options are incorrect:

Foam is gas-in-liquid. Solid foam is gas-in-solid. Fog is liquid-in-gas (aerosol).

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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