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प्रश्न
Give reasons for the following observations:
Brownian movement provides stability to the colloidal solution.
उत्तर
Brownian motion counters the force of gravity acting on the colloidal particles and hence helps in providing stability to the colloidal sols by not allowing them to settle.
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संबंधित प्रश्न
Out of MgCl2 and AlCl3, which one is more effective in causing coagulation of negatively charged sol and why?
Explain what is observed An electrolyte, NaCl is added to hydrated ferric oxide sol.
Explain the term Electrophoresis
Explain the terms Tyndall effect.
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What happens when an emulsion is centrifuged?
The values of colligative properties of colloidal solution are of small order in comparison to those shown by true solutions of same concentration because of colloidal particles ______.
Which of the following statements are correct?
(i) Mixing two oppositely charged sols neutralises their charges and stabilises the colloid.
(ii) Presence of equal and similar charges on colloidal particles provides stability to the colloids.
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(i) Reverse osmosis takes place.
(ii) Electroosmosis takes place.
(iii) Dispersion medium begins to move.
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What is Gold number?
