TS EAMCET · Chemistry · Surface Chemistry
The most effective coagulating agent among the following for \(\mathrm{Sb}_2 \mathrm{~S}_3\) sol is
- A \(\mathrm{Na}_2 \mathrm{SO}_4\)
- B \(\mathrm{Al}_2\left(\mathrm{SO}_4\right)_3\)
- C \(\mathrm{NH}_4 \mathrm{Cl}\)
- D \(\mathrm{NaCl}\)
Answer & Solution
Correct Answer
(B) \(\mathrm{Al}_2\left(\mathrm{SO}_4\right)_3\)
Step-by-step Solution
Detailed explanation
\(\mathrm{Sb}_2 \mathrm{~S}_3\) is a negative sol, means negative charge is spread over the surface of \(\mathrm{Sb}_2 \mathrm{~S}_3\) molecules. Thus, positive ions, having high charge density can easily coagulate them. Since, \(\mathrm{Al}_2\left(\mathrm{SO}_4\right)_3\) has…
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