Which of the following ionic substances will be most effective in precipitating the sulphur sol?

Question

Which of the following ionic substances will be most effective in precipitating the sulphur sol? (A) KCl (B) BaCl2 (C) Fe2(SO4)3 (D) Na3PO4

Tardigrade Admin · Accepted Answer

Higher is the charge on cation, higher is the precipitating power. Fe 2( SO 4)3 will be most effective in precipitating the sulphur sol. Sulphur sol is negatively charged colloid. It will be precipitated by cations. Among the given ionic substances, Fe 3+ ion has maximum charge and hence maximum precipitating power.

Q. Which of the following ionic substances will be most effective in precipitating the sulphur sol?

$K Cl$

$B a C l_{2}$

$F e_{2} (S O_{4})_{3}$

$N a_{3} P O_{4}$

Q. Which of the following ionic substances will be most effective in precipitating the sulphur sol?

KCl

BaCl2​

Fe2​(SO4​)3​

Na3​PO4​

$K Cl$

$B a C l_{2}$

$F e_{2} (S O_{4})_{3}$

$N a_{3} P O_{4}$