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Which of the following substances will p...

Which of the following substances will precipitate the negatively charged emulsions ?

A

KCl

B

Glucose

C

Urea

D

NaCl

Text Solution

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The correct Answer is:
A, D
The droplets present in emulsion has negative charge. It can be precipitated by adding electrolyte such as KCL, NaCl etc. Since, glucose and urea do not produce ions on dissolving in water.
Hence, they are non-electrolyte and do not precipitate the negatively charged emulsion.
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  5. What happens when a Lyophilic sol is added to a Lyophobic sol?

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  10. Why is chemisorption referred to as activated adsorption?

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  11. What type of solutions are formed on dissolving different concentratio...

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  12. What happens when gelatin is mixed with gold sol ?

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