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

Which of the following will show Tyndall effect? - Chemistry

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प्रश्न

Which of the following will show Tyndall effect?

पर्याय

  • Aqueous solution of soap below critical micelle concentration.

  • Aqueous solution of soap above critical micelle concentration.

  • Aqueous solution of sodium chloride.

  • Aqueous solution of sugar.

MCQ
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उत्तर

Aqueous solution of soap above critical micelle concentration.

Explanation:

Aqueous solution of soap above critical micelle concentration leads to the formation of colloidal solution. Tyndall effect is a characteristic of colloidal solution in which colloidal particles show a coloured appearance when sunlight is passes through it and seen perpendicularly.

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पाठ 5: Surface Chemistry - Exercises [पृष्ठ ६५]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 5 Surface Chemistry
Exercises | Q I. 15. | पृष्ठ ६५

संबंधित प्रश्‍न

What is the reason for the stability of colloidal sols?


Define the following terms: Associated colloids


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


Explain the term Electrophoresis


Explain the terms Dialysis 


Explain the term Tyndall effect.


What happens when persistent dialysis of a colloidal solution is carried out?


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? 


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.


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.


Assertion: Colloidal solutions do not show brownian motion.

Reason: Brownian motion is responsible for stability of sols.


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?


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


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


The right option for the statement “Tyndall effect is exhibited by”, is:


State the Hardy-Schulze rule.


What is electrophoresis?


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