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Question
Explain the preparation of Gold Sol by Bredig's arc method ?
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Solution
Bredig's arc method consists of both dispersion and condensation.An arc is struck between electrodes, under the surface of water containing some stabilizing agent such as traces of KOH (potassium hydroxide).The intense heat of the arc vaporizes (Dispersion) some of the metal which then condenses under cold water. The water is kept cold as an ice bath
Bredig's arc method consists of both dispersion and condensation.
An arc is struck between electrodes, under the surface of water containing some stabilizing agent such as traces of KOH (potassium hydroxide).
The intense heat of the arc vaporizes (Dispersion) some of the metal which then condenses under cold water. The water is kept cold as an ice bath
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