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प्रश्न
What happens when a beam of light is passed through a colloidal sol.
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उत्तर
- When a beam of light is passed through colloidal sol, it is observed that the colloidal particles scatter some of the incident light in all directions.
- Because of this scattering of light, the path of light through the colloidal dispersion becomes visible to an observer standing at right angles to its path, and the phenomenon is known as the Tyndall effect.
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संबंधित प्रश्न
Comment on the statement that “colloid is not a substance but a state of substance”.
Define the following with a suitable example, of each:
Multimolecular colloid
Define the following with a suitable example, of each:
Gel
Choose the correct option.
The size of colloidal particles lies between ______.
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What are the applications of Electrophoresis?
Explain Bredig’s arc method.
Which type of colloid is formed on the dissolution of soap in water?
Identify the CORRECT statement.
Which of the following statements is CORRECT?
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Which of the following can form colloidal sol with water?
Freshly prepared precipitate sometimes gets converted to colloidal solution by ______.
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An emulsion cannot be broken by:
(i) heating
(ii) adding more amount of dispersion medium
(iii) freezing
(iv) adding emulsifying agent
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(i) \[\ce{KCl}\]
(ii) glucose
(iii) urea
(iv) \[\ce{NaCl}\]
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Why are some medicines more effective in the colloidal form?
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Why is \[\ce{Fe(OH)3}\] colloid positively charged, when prepared by adding \[\ce{FeCl3}\] to hot water?
Cloud is an example of
The coagulation of 200 ML of position sol took place when 0.73 HCL was added to its without changing the volume much. The flocculation value of HCL for the colloid is.
Which of the following substances will precipitate the negatively charge emulsion
The size of a raw mango shrinks to a much smaller size when kept in a concentrated salt solution. Which one of the following processes can explain this?
The migration of dispersion medium under the influence of an electric potential is called ______.
In which of the following, the Tyndall effect is not observed?
Identify the colloidal molecule containing hydrophilic head and hydrophobic tail within it.
