JEE Main Chemistry question

Not in JEE Main or NEET syllabus

The simplest way to check whether a system is a colloid, is by

(A)Tyndall effectCorrect
(B)Brownian movement
(C)Electrodialysis
(D)Finding out particle size

Answer: (A)

Solution

Simply passing a beam of light through the system and observing the path of light (Tyndall effect) quickly distinguishes a colloid from a true solution, without needing specialised

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Question ID VK-144743