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प्रश्न
Explain the terms Coagulation
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उत्तर
Coagulation: The process of settling down of colloidal particles i.e., conversion of a colloid into a precipitate is called coagulation.
संबंधित प्रश्न
Define the following terms: Associated colloids
Explain what is observed when an electrolyte NaCl is added to hydrated ferric oxide sol.
Explain what is observed when an electric current is passed through a colloidal sol?
What happens when an emulsion is centrifuged?
Which of the following will show Tyndall effect?
How does it become possible to cause artificial rain by spraying silver iodide on the clouds?
What causes brownian motion in colloidal dispersion?
Why does leather get hardened after tanning?
Assertion: Colloidal solutions show colligative properties.
Reason: Colloidal particles are large in size.
Assertion: Coagulation power of Al3+ is more than Na+.
Reason: Greater the valency of the flocculating ion added, greater is its power to cause precipitation (Hardy Schulze rule).
Give reason for the following:
Lyophilic colloidal solutions are more stable than lyophobic colloidal solutions.
What is common in aqua sols and solid aerosols? How do they differ?
Gold number is associated with:-
The important factor in the stabilization of a colloidal solution is ______
State the Hardy-Schulze rule.
6.84 g Al2(SO4)3 is needed to coagulate 2.5 L of As2S3 sol completely in 2.0 hrs. The coagulation value of Al2 (SO4)3 is ______.
Lyophilic sols are more stable than lyophobic sols because ______.
