Class 12 Chemistry Surface Chemistry Colloids, Emulsion, Gel and Their properties with application

Easy

This equation represents the preparation of gold sol: $2 AuCl_3 + 3 HCHO + 3 H_2 O \rightarrow 2 Au + 3 HCOOH + 6 HCl$. What type of reaction is this?

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A
Oxidation
B
Reduction
C
Double decomposition
D
Hydrolysis

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

Surface Chemistry

Subtopic

Colloids, Emulsion, Gel and Their properties with application

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