Gold sol can be prepared by

Question

Gold sol can be prepared by (A) hydrolysis of gold (III) chloride (B) oxidation of gold by aqua regia (C) peptization (D) treating gold (III) chloride with metallic zinc

Tardigrade Admin · Accepted Answer

Gold sol can be prepared by reducing gold

(III)

chloride with formalin solution (aqueous solution of formaldehyde)

2 A u C l_{3} + Formalin solution 3 H C H O + 3 H_{2} O Reduction

Sol 2 A u + 3 H COO H + 6 H Cl

Q. Gold sol can be prepared by

hydrolysis of gold (III) chloride

oxidation of gold by aqua regia

peptization

treating gold (III) chloride with metallic zinc

reduction of gold (III) chloride with formalin solution

Gold sol can be prepared by reducing gold $(III)$ chloride with formalin solution (aqueous solution of formaldehyde)

$2 A u C l_{3} + Formalin solution 3 H C H O + 3 H_{2} O Reduction$

$Sol 2 A u + 3 H COO H + 6 H Cl$