Q. Mention the type of reaction to obtain Au(sol). Reaction, $2{AuCl}_{3} + 3HCHO + 3H_{2}O \rightarrow 2Au(sol) + 3HCOOH + 6HCl$
A) Hydrolysis
B) Oxidation
C) Reduction
D) Double decomposition
Explanation
(c)
The gold sol is obtained by the reduction of ${AuCl}_{3}.$
$2{AuCl}_{3} + 3HCHO + 3H_{2}O \rightarrow 2Au + 3HCOOH + 6HCL$
Gold sol
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.