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Bredig's arc method cannot be used to pr...

Bredig's arc method cannot be used to prepare colloidal solution of which of the following

A

Pt

B

Fe

C

Ag

D

Au

Text Solution

Verified by Experts

The correct Answer is:
B
Bredig.s arc method is suitable for the preparation of colloidal solution of metal like gold, silver, platinum etc. An arc is struck between the metal electrode 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.
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ERRORLESS-SURFACE CHEMISTRY-NCERT BASED QUESTIONS (Colloids, Emulsion, Gel and their properties with Application)
  1. Peptizing agent is

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  2. The purification of the colloidal particles from crystalloid dimension...

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  3. Bredig's arc method cannot be used to prepare colloidal solution of wh...

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  4. Colloidal solution of gold cannot be prepared by

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  5. All colloidal dispersions have

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  6. Which of the following is most effective in coagulating a ferric hydro...

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  7. Tyndall effect will be observed in :

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  8. Movement of colloidal particles under the influence of electrostatic f...

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  9. Which of the following substance gives a positively charged sol?

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  10. When a colloidal sol is observed under a microscope we can see,

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  11. The blue colour of the water of the sea is due to :

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  12. The charge on Fe(OH)(3) sol is due to

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  13. Colour of colloids depends on which of the following factors

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  14. The colloidal solution of gelatin in known as :

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  15. TYNDALL EFFECT

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  16. The dispersed phase in colloidal iron (III) hydroxide and collodial go...

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  17. Which of the following process is not responsible for the presence of ...

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  18. When a small quantity of aqueous solution of Kl is added to a very dil...

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  19. Sedimentation potential is reverse of :

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  20. When a freshly precipitated substance is converted into a colloidal so...

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