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Bredig's arc method is used for the prep...

Bredig's arc method is used for the preparation of colloidal solution of 

A

Organic compounds

B

metals like silver, gold etc

C

two liquids

D

inorganic compounds

Text Solution

Verified by Experts

The correct Answer is:
B
Gold, Ag, Pt Lyophobic sols are prepared by Bredig.s method
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AAKASH SERIES-SURFACE CHEMISTRY-LEVEL - II (LECTURE SHEET) (EXERCISE - I)(SINGLE & ONE OR MORE THAN ONE CORRECT ANSWERS)
  1. Which of the following is not considered as absorption

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  2. Insecticide sprays are example of

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  3. Bredig's arc method is used for the preparation of colloidal solution ...

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  4. When freshly precipitated Fe(OH)3 is boiled with water in the presence...

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  5. The migration of positively charged colloidal particles, under an elec...

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  6. If a freshly formed ppt of SnO2 is peptised by a small amount of NaOH,...

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  7. On adding AgNO(3) solution to KI solution, a negatively charged colloi...

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  8. Chromatography is a technique based on

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  9. Arsenous sulphide sol is prepared by passing H2S through asenous oxide...

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  10. Tyndall effect observed only when

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  11. When lyophillic sols like starch is placed in electric field the sol p...

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  12. An emulsifier is an agent which

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  13. Oil soluble dye is mixed with water - in - oil emulsion then

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  14. Oil soluble dye is mixed with emulsion and emulsion remains colourless...

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  15. Non - ionogenic surfactants are

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  16. Select correct properties of emulsions

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  17. At CMC

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  18. Above CMC, the surfactant molecules under go

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  19. Which of the following is true in respect of adsorption

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  20. In the adsorption of acetic acid by charcoal which of the following st...

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