Advertisements
Advertisements
प्रश्न
Why is \[\ce{Fe(OH)3}\] colloid positively charged, when prepared by adding \[\ce{FeCl3}\] to hot water?
Advertisements
उत्तर
The adsorption of positively charged \[\ce{Fe^{3+}}\] ions by the sol of hydrated ferric oxide results in positively charged colloid.
APPEARS IN
संबंधित प्रश्न
Write one difference in Multimolecular colloid and Associated colloid
Distinguish between lyophobic and lyophilic sols.
Explain Bredig’s arc method.
Explain the term emulsion and types of emulsions.
Draw labelled diagram Tyndall effect.
Draw labelled diagram of Bredig’s arc method.
Froth and whipped cream are examples of ____________.
Which one of the following methods is used to make platinum sol?
Mist is a colloidal solution of ____________.
Mixing of two oppositely charged sols leads to ____________.
Which of the following ionic species has highest precipitating power?
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?
For coagulating 200 ml of arsenious sulphide sol, 10 ml of 1 m NaCl solution is required find out the flocculation value of NaCl.
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?
Blood may be purified by ______.
Identify the colloidal molecule containing hydrophilic head and hydrophobic tail within it.
Starch is an example of which of the following type of colloid?
