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| 1. |
Out of BaCl_2 and KCI, which one is more effective in causing coagulation of a negatively charged colloidal sol ? Give reasons. |
| Answer» SOLUTION :`BaCl_2` PRODUCES dipositive `Ba^(2+)` cations while NaCl produces monopositive `Na^(+)`ions. Therefore `Ba^(2+)` ION are more EFFECTIVE in causing coagulation of a negatively charged colloidal solution. | |