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The colloidal solutions of gold prepared...

The colloidal solutions of gold prepared by different methods have different colors due to :

A

variable valency of gold

B

different concentration of gold particles

C

different types of impurities

D

different diameter of colloidal particles

Text Solution

Verified by Experts

The correct Answer is:
D
Colloidal particles of different size scatter light of different wavalengths resulting in different colours.
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