Arsenic sulphide sol is prepared by passing H2S through As2O3 solution. The charge developed on sol particles is due to the adsorption of

Question

Arsenic sulphide sol is prepared by passing H2S through As2O3 solution. The charge developed on sol particles is due to the adsorption of (A) H+ (B) S2 - (C) OH- (D) O2 -

Tardigrade Admin · Accepted Answer

As2O3+3H2S arrow underset(. s o l .)A s2 S3+3H2O H2S molecules get adsorbed on As2S3 sol particles. Enthalpy of adsorption dissociates H2S to form H+ and S2 - . H+ ions are lost and S2 - ions remain adsorbed on the surface sol particles.

Q. Arsenic sulphide sol is prepared by passing $H_{2} S$ through $A s_{2} O_{3}$ solution. The charge developed on sol particles is due to the adsorption of

$H^{+}$

$S^{2 -}$

$O H^{-}$

$O^{2 -}$

$A s_{2} O_{3} + 3 H_{2} S \to (so l) A s_{2} S_{3} + 3 H_{2} O$

$H_{2} S$ molecules get adsorbed on $A s_{2} S_{3}$ sol particles. Enthalpy of adsorption dissociates $H_{2} S$ to form $H^{+}$ and $S^{2 -}$ . $H^{+}$ ions are lost and $S^{2 -}$ ions remain adsorbed on the surface sol particles.

Q. Arsenic sulphide sol is prepared by passing H2​S through As2​O3​ solution. The charge developed on sol particles is due to the adsorption of

H+

S2−

OH−

O2−