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प्रश्न
Draw labelled diagram of Bredig’s arc method.
उत्तर
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संबंधित प्रश्न
Comment on the statement that “colloid is not a substance but a state of substance”.
Write one difference in Multimolecular colloid and Associated colloid
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 ______.
Write a note on the Tyndall effect.
Write a note on Types of emulsion.
Explain the term emulsion and types of emulsions.
Explain micelle formation in a soap solution.
Draw labelled diagram of Soap micelle.
Identify the CORRECT statement.
Identify the CORRECT statements from the following.
i. The colour of colloidal dispersion depends on size of colloidal particles.
ii. Tyndall effect is used to distinguish between colloidal dispersion and true solution.
iii. Eosin and congo red are examples of negatively charged sols.
Tyndall effect is observed due to ____________.
Which of the following ionic species has highest precipitating power?
In which of the following sols there is low affinity between dispersed phase and dispersion medium?
Which of the following electrolytes will have maximum coagulating value for AgI/Ag+ solution?
An emulsion cannot be broken by:
(i) heating
(ii) adding more amount of dispersion medium
(iii) freezing
(iv) adding emulsifying agent
What is collodion?
How does the precipitation of colloidal smoke take place in Cottrell precipitator?
Colloids can
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 ______.
Van Arkel's method of purification of metals involves converting the metal to a ______.
Identify positively charged sol from following.
Identify the correct decreasing order of precipitation power of flocculating ion added, from following.
