Which metal sol cannot be prepared by Bredig' | vedclass

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Question

(A) Bredig's arc method is used for the preparation of colloidal sols of noble metals like $Au$,$Ag$,and $Pt$. In this method,an electric arc is struc

Vedclass · Accepted Answer

$K$

Vedclass · Answer

(A) Bredig's arc method is used for the preparation of colloidal sols of noble metals like $Au$,$Ag$,and $Pt$. In this method,an electric arc is struck between electrodes of the metal immersed in a dispersion medium. $K$ (Potassium) is a highly reactive alkali metal that reacts violently with water (the dispersion medium),making it impossible to prepare a stable sol using this method.

Which metal sol cannot be prepared by Bredig's arc method?

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