Single Choice

Which of the following will be the most effective in the coagulation of $$Fe(OH)_3$$ sol?

A$$Mg_3(PO_4)_2$$
Correct Answer
B$$BaCl_2$$
CNaCl
DKCN

Solution

$$Fe(OH)_3$$ sol is positively charged sol. It will be coagulated by negatively charged ions.

$$Mg_3(PO_4)_2$$ provides phosphate ions $$PO_4^{3-}$$ which have maximum negative charge among the given electrolytes.

Hence, $$Mg_3(PO_4)_2$$ will be the most effective in the coagulation of $$Fe(OH)_3$$ sol.

SIMILAR QUESTIONS

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A sol has positively charged colloidal particles. Which of the following solutions is required in the lowest concentration for coagulation?

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As per Hardy-Schulze formulation, the flocculation value of the following for ferric hydroxide sol are in the order :

Surface Chemistry

For coagulation of arsenious sulphide sol, which one of the following salt solution will be most effective?

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Surface Chemistry

Which of the following is most effective electrolyte in the coagulation of $$AgI/ Ag^{+}$$ sol? $$K_{2}SO_{4}, MgCl_{2}, K_{4}[Fe(CN)_{6}]$$.

Surface Chemistry

Which one of the following electrolytes is the most effective for the coagulation of $$Fe(OH)_{3}$$ sol and why? $$NaCl, Na_{2}SO_{4}, Na_{3}PO_{4}$$.

Surface Chemistry

Answer the following questions. Out of $$MgCl_{2}$$ and $$AlCl_{3}$$, which one is more effective in causing coagulation of negative charged sol and why?

Surface Chemistry

Answer the following question. Out of $$H_{2}SO_{4}$$ and $$H_{3}PO_{4}$$, which one is more effective in causing coagulation of positively charged sol? Give reason.

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