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When a hydrophilic sol like gelatin is s...

When a hydrophilic sol like gelatin is subjected to
electric field, the sol particle moves

A

Towards anode when `pH gt` isoelectric point

B

In both directions at isoelectric pH

C

Towards cathode when `pH lt` isoelectric point

D

All of these

Text Solution

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The correct Answer is:
A, C
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Knowledge Check

  • Which of the following process is not responsible for the presence of electric charge on the sol particles?

    A
    Electron capture by sol particles
    B
    Adsorption of ionic species from solution
    C
    Formation of Helmholtz electrical double layer
    D
    Absorption of ionic species from solution.

  • Which of the following statement is/are correct regarding stability of sol ? Lyophilic sols are stabilised due to a layer of solvent around sol particles. (ii) Lyophobic sols are stabilised due to presence of charge. (iii) Addition of lyophilic brings in more stability to lyophobic (iv) Addition of lyophobic brings in more stability to lyophobic.

    A
    (ii) only
    B
    (i) and (iv) only
    C
    (i), (ii) and (iii) only
    D
    All of these.