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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Assertion: Colloidal solutions do not show brownian motion. Reason: Brownian motion is responsible for stability of sols.

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प्रश्न

Assertion: Colloidal solutions do not show brownian motion.

Reason: Brownian motion is responsible for stability of sols.

विकल्प

  • Assertion and reason both are correct and the reason is correct explanation of assertion.

  • Assertion and reason both are correct but reason does not explain assertion.

  • Assertion is correct but reason is incorrect.

  • Both assertion and reason are incorrect.

  • Assertion is incorrect but reason is correct.

MCQ
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उत्तर

Assertion is incorrect but reason is correct.

Explanation:

Colloidal particle shows Brownian movement. The Brownian movement has a stirring effect which does not permit the particles to settle and thus, is responsible for the stability of sols.

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अध्याय 5: Surface Chemistry - Exercises [पृष्ठ ७३]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 5 Surface Chemistry
Exercises | Q 75 | पृष्ठ ७३

संबंधित प्रश्न

What is the reason for the stability of colloidal sols?


Out of BaCl2 and KCl, which one is more effective in causing coagulation of a negatively charged colloidal Sol? Give reason.


What modification can you suggest in the Hardy-Schulze law?


Explain what is observed when an electric current is passed through a colloidal sol?


Explain the terms Coagulation


Explain the terms Dialysis 


A colloidal sol is prepared by the given method in the figure. What is the charge on hydrated ferric oxide colloidal particles formed in the test tube? How is the sol represented?


Which of the following will show Tyndall effect?


What causes brownian motion in colloidal dispersion?


Match the statement given in Column I with the phenomenon given in Column II.

Column I Column II
(i) Dispersion medium moves in an electric field (a) Osmosis
(ii) Solvent molecules pass through semi permeable
membrane towards solvent side
(b) Electrophoresis
(iii) Movement of charged colloidal particles under
the influence of applied electric potential towards
oppositely charged electrodes
(c) Electroosmosis
(iv) Solvent molecules pass through semi permeable
membranes towards solution side
(d) Reverse osmosis

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Lyophilic colloidal solutions are more stable than lyophobic colloidal solutions.


What is Gold number?


Which of the following is used for removing change on colloidal solution?


The important factor in the stabilization of a colloidal solution is ______


State the Hardy-Schulze rule.


Lyophilic sols are more stable than lyophobic sols because ______.


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