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

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 ______. - Chemistry

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प्रश्न

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 ______.

पर्याय

  • exhibit enormous surface area.

  • remain suspended in the dispersion medium.

  • form lyophilic colloids.

  • are comparatively less in number.

MCQ
रिकाम्या जागा भरा
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उत्तर

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 are comparatively less in number.

Explanation:

Collodial particles are bigger aggregative than the number of particles in a collodial solution. Hence, the values of colligative are of small order as compared to values shown by true solutions at same concencration.

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पाठ 5: Surface Chemistry - Exercises [पृष्ठ ६६]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 5 Surface Chemistry
Exercises | Q I. 20. | पृष्ठ ६६

संबंधित प्रश्‍न

What is the reason for the stability of colloidal sols?


Give reasons for the following observations:

Brownian movement provides stability to the colloidal solution.


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


Give reasons for the following observations: Leather gets hardened after tanning.


Explain the terms Coagulation


Answer the following question.
Why are medicines more effective in the colloidal state?


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 solution represented? 


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?


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.


Which phenomenon occurs when an electric field is applied to a colloidal solution and electrophoresis is prevented?

(i) Reverse osmosis takes place.

(ii) Electroosmosis takes place.

(iii) Dispersion medium begins to move.

(iv) Dispersion medium becomes stationary.


How does it become possible to cause artificial rain by spraying silver iodide on the clouds?


Why does leather get hardened after tanning?


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

Assertion: Colloidal solutions show colligative properties.

Reason: Colloidal particles are large in size.


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