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प्रश्न
Why are lyophillic colloidal sols are more stable than lyophobic colloidal sol?
उत्तर
1. A lyophillic colloidal sols are stable due to the charge and the hydration of sol particles.
2. Lyophillic sols are more stable than lyophobic sols because they are highly hydrated in the solution. And since more is the hydration more will be its stability.
3. Lyophillic sols are stabilized by electrostatic charge and hydration whereas lyophobic sols are only stabilized by charge, so they easily get coagulated and require a stabilising agent. Hence, lyophillic sols are more stable than lyophobic sols.
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संबंधित प्रश्न
The most effective electrolyte for the coagulation of As2S3 Sol is ____________.
Which one of the is not a surfactant?
In an electrical field, the particles of a colloidal system move towards the cathode. The coagulation of the same sol is studied using
I. K2SO4
II. Na3PO4
III. K4[Fe(CN)6]
IV. NaCI
Their coagulating power should be
The coagulation values in millimoles per litre of the electrolytes used for the coagulation of As2S3 are given below
(I) (NaCl) = 52
(II) (BaCl2) = 0.69
(III) (MgSO4) = 0.22
The correct order of their coagulating power is:
Peptising agent is added to convert precipitate into colloidal solution. Explain with an example.
What happens when a colloidal sol of Fe(OH)3 and As2S3 are mixed?
Why does the bleeding stop by rubbing moist alum?
Which one of the is not a surfactant?
Which one of the is not a surfactant?
Which one of the is not a surfactant?
