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 ______.

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

संबंधित प्रश्‍न

Define the following terms: Associated colloids


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Why are medicines more effective in the colloidal state?


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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.

(iii) Any amount of dispersed liquid can be added to emulsion without destabilising it.

(iv) Brownian movement stabilises sols.


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.


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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Lyophilic colloidal solutions are more stable than lyophobic colloidal solutions.


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Coagulation


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