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. | |