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प्रश्न
Define coagulation.
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उत्तर
It is a process of aggregating together the colloidal particles so as to change them into large-sized particles, which ultimately settle as a precipitate.
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संबंधित प्रश्न
What is the reason for the stability of colloidal sols?
Define the following term:
Zeta potential
Give reasons for the following observations:
Brownian movement provides stability to the colloidal solution.
Give reasons for the following observations: Leather gets hardened after tanning.
What modification can you suggest in the Hardy-Schulze law?
Explain the terms Coagulation
Which of the following will show Tyndall effect?
What happens when a lyophilic sol is added to a lyophobic sol?
(i) Lyophobic sol is protected.
(ii) Lyophilic sol is protected.
(iii) Film of lyophilic sol is formed over lyophobic sol.
(iv) Film of lyophobic sol is formed over lyophilic sol.
Assertion: Colloidal solutions do not show brownian motion.
Reason: Brownian motion is responsible for stability of sols.
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 ______.
