Q. Bredig arc method cannot be used to prepare colloidal solution of :

A) Pt
B) Fe
C) Ag
D) Au
Explanation

(b)
Bredig arc method is used to prepare the metal sols which do not react with water even at high temperature.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.