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The coagulation of `100mL` of a colloidal solution of gold is completely prevented by adding `0.25g` of starch to it before adding `10mL` of `10%NaCl` solution. The gold number of starch isA. `24`B. `240`C. `120`D. `360` |
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Answer» Correct Answer - A `0.024g` or `24mg` |
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