Advertisements
Advertisements
Questions
Explain micelle formation in a soap solution.
Explain the formation of a micelle in soap solution.
Advertisements
Solution

- A soap molecule has a long hydrophobic hydrocarbon chain called a tail, which is attached to the hydrophilic ionic carboxylate group, called the head.
- In water, the soap molecules arrange themselves to form spherical particles that are called micelles.
- In each micelle, the hydrophobic tails of soap molecules point to the center, and the hydrophilic heads lie on the surface of the sphere.
- As a result of this, soap dispersion in water is stable.
APPEARS IN
RELATED QUESTIONS
Define the following with a suitable example, of each:
Gel
Define the term Electrophoresis.
Distinguish between lyophobic and lyophilic sols.
Write Hardy-Sulze rules.
Write a note on Types of emulsion.
Explain Electrophoresis diagramatically.
Explain the term emulsion and types of emulsions.
Draw labelled diagram of Bredig’s arc method.
Which type of colloid is formed on the dissolution of soap in water?
Froth and whipped cream are examples of ____________.
In coagulation of positively charged ferric hydroxide sol, the most and least effective ions are ____________ and ____________ respectively.
Which of the following is NOT true for lyophilic colloids?
Which of the following is multimqlecular colloid?
Which of the following compounds forms a colloidal solution when dissolved in water?
Which of the following ionic species has highest precipitating power?
Freshly prepared precipitate sometimes gets converted to colloidal solution by ______.
Which of the following process is responsible for the formation of delta at a place where rivers meet the sea?
An emulsion cannot be broken by:
(i) heating
(ii) adding more amount of dispersion medium
(iii) freezing
(iv) adding emulsifying agent
Which of the following substances will precipitate the negatively charged emulsions?
(i) \[\ce{KCl}\]
(ii) glucose
(iii) urea
(iv) \[\ce{NaCl}\]
How do emulsifying agents stabilise the emulsion?
Why are some medicines more effective in the colloidal form?
Colloids can
For coagulating 200 ml of arsenious sulphide sol, 10 ml of 1 m NaCl solution is required find out the flocculation value of NaCl.
Identify the correct decreasing order of precipitation power of flocculating ion added, from following.
