1. Tardigrade
  2. Question
  3. Chemistry
  4. Some of the properties given below are for colloidal sols. (I) Viscosity is same as that of the medium. (II) Extensive hydration takes place. (III) Migration of the particles under electric field. (IV) Particles cannot be detected even under ultramicroscope. Properties applicable for lyophilic and lyophobic colloidal sols are Lyophilic Lyophobic 1 I and II III and IV 2 I and II II and IV 3 II and IV I and III 4 II and III I and IV

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Q. Some of the properties given below are for colloidal sols.
(I) Viscosity is same as that of the medium.
(II) Extensive hydration takes place.
(III) Migration of the particles under electric field.
(IV) Particles cannot be detected even under ultramicroscope. Properties applicable for lyophilic and lyophobic colloidal sols are
Lyophilic Lyophobic
1 I and II III and IV
2 I and II II and IV
3 II and IV I and III
4 II and III I and IV

Surface Chemistry

Solution:

In lyophilic colloidal sol, extensive hydration takes place and their particles cannot be detected even under ultra-microscope.
In lyophobic colloidal sol, viscosity is same as that of the medium and particles migrate towards anode or cathode on passing electric current.
Thus, lyophilic$ - II, IV$
lyophobic $ - 1, III$