A) pt
B) Fe
C) Ag
D) Au
Correct Answer: B
Solution :
[b] Bredig?s are method is suitable for the preparation of colloidal solution of metal like gold silver, platinum etc. an are is struck between the metal electrodes under the surface of water containing some stabilizing agent such as a trace of KOH. However, Fe does not react with alkalies that is why it is not obtained by Bredig's arc method.You need to login to perform this action.
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