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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

The difference in the size of the colloidal particles

B

The fact that gold exhibits a variable valency of +1 and +3

C

Different concentrations of gold

D

Presence of different types of foreign particles depending upon the method of preparation of the colloid

Text Solution

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The correct Answer is:
A
Properties of ionic solid
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