Which metal sol cannot be prepared by Bredig' | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

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?

Similar Questions

Which of the following solutions is used in the styptic action which prevents bleeding of blood?

Which one of the following is not a property of hydrophilic sols?

Milk is an example of which type of colloid?

How will you distinguish between dispersed phase and dispersion medium in an emulsion?

$A$ sample of red ink (a colloidal solution) is prepared by mixing eosin dye,egg white,$HCHO$ and water. The component which ensures stability of the ink sample is :-

Vedclass Test Series

Exam Paper Generator

Online Exam Module