MCQOPTIONS
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| 1. |
Which of the following electrolytes is least effective in causing flocculation of ferric hydroxide sol [MNR 1991; UPSEAT 1999] |
| A. | K4[Fe(CN)6] |
| B. | K2CrO4 |
| C. | KBr |
| D. | K2SO4 |
| Answer» D. K2SO4 | |