

MCQOPTIONS
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1. |
Different colloidal particles of gold having different colours, obtained from different methods due to [MP PET 1989; UPSEAT 2001, 02; EAMCET 2003] |
A. | Variable valency of gold |
B. | Different concentration of gold particles |
C. | Different types of impurities |
D. | Different radius of colloidal particles |
Answer» E. | |