MHT CET 2026 Chemistry question

Not in JEE Main or NEET syllabus

Which of the following properties is responsible for the development of colour to the colloids ?

(A)Tyndall effectCorrect
(B)Brownian motion
(C)Electrophoresis
(D)Electroosmosis

Answer: (A)

Solution

The colour of a colloidal sol depends on the wavelength of light scattered by the dispersed particles, i.e. on scattering of light (the Tyndall effect), and therefore on particle size and nature; this gives option (A). Brownian motion is the random zig-zag

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Question ID VK-099361