Class 10 Science - Chapter Carbon and Its Compound NCERT Solutions | Why does micelle formation take place wh
Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?
A soap is a sodium or potassium salt of long chain carboxylic acids. It has one polar end and one non-polar end. The polar end is hydrophilic in nature which is attracted towards water. The non-polar end is hydrophobic but lipophilic, i.e., it is attracted towards hydrocarbons. When soap is added to water, soap molecules arrange themselves in a cluster, the non-polar portion out of water such that the non-polar ends are in the interior of the cluster attached with dirt and the polar ends are on the surface of the cluster. Since the dirt present on clothes is oily in nature and insoluble in water, the hydrophobic ends of the clusters attach themselves to the dirt. This cluster of soap molecule formation in which the dirt is entrapped is called micelles.
Micelle formation does not occur in alcohol because the alkyl chain of soap becomes soluble in alcohol.
More Questions From Class 10 Science - Chapter Carbon and Its Compound
- Q:-
Draw the structure for the following compounds.
(i) Ethanoic acid (ii) Bromopentane*
(iii) Butanone (iv) Hexanal.*Are structural isomers possible for bromopentane?
- Q:-
What is an homologous series? Explain with an example.
- Q:-
How would you name the following compounds?
(i) CH3 -- CH2 -- Br
(ii)
(iii)
- Q:-
What will be the formula and electron dot structure of cyclopentane?
- Q:-
Explain the nature of the covalent bond using the bond formation in CH3Cl.
- Q:-
Why are carbon and its compounds used as fuels for most applications?
- Q:-
How many structural isomers can you draw for pentane?
- Q:-
Explain the mechanism of the cleaning action of soaps.
- Q:-
What are the two properties of carbon which lead to the huge number of carbon compounds we see around us?
- Q:-
Explain the formation of scum when hard water is treated with soap.
Popular Questions of Class 10 Science
- Q:-
Did Döbereiner’s triads also exist in the columns of Newlands’ Octaves? Compare and find out.
- Q:-
What is a good source of energy?
- Q:-
Why is diffusion insufficient to meet the oxygen requirements of multi-cellular organisms like humans?
- Q:-
What are trophic levels? Give an example of a food chain and state the different trophic levels in it.
- Q:-
What changes can you make in your habits to become more environment-friendly?
- Q:-
What is the difference between a reflex action and walking?
- Q:-
What is the importance of DNA copying in reproduction?
- Q:-
If a trait A exists in 10% of a population of an asexually reproducing species and a trait B exists in 60% of the same population, which trait is likely to have arisen earlier?
- Q:-
Why should a magnesium ribbon be cleared before burning in air?
- Q:-
Define the principal focus of a concave mirror.
Recently Viewed Questions of Class 10 Science
- Q:-
Which of the following are environment-friendly practices?
(a) Carrying cloth-bags to put purchases in while shopping
(b) Switching off unnecessary lights and fans
(c) Walking to school instead of getting your mother to drop you on her scooter
(d) All of the above - Q:-
Explain the following in terms of gain or loss of oxygen with two examples each.
(a) Oxidation
(b) Reduction - Q:-
A person with a myopic eye cannot see objects beyond 1.2 m distinctly. What should be the type of the corrective lens used to restore proper vision?
- Q:-
How can you help in reducing the problem of waste disposal? Give any two methods.
- Q:-
Write the balanced chemical equation for the following and identify the type of reaction in each case.
(a) Potassium bromide(aq) + Barium iodide(aq) → Potassium iodide(aq) + Barium bromide(s)
(b) Zinc carbonate(s) → Zinc oxide(s) + Carbon dioxide(g)
(c) Hydrogen(g) + Chlorine(g) → Hydrogen chloride(g)
(d) Magnesium(s) + Hydrochloric acid(aq) → Magnesium chloride(aq) + Hydrogen(g - Q:-
A shiny brown coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.
- Q:-
Explain why the planets do not twinkle.
- Q:-
Which of the following terms does not represent electrical power in a circuit?
(a) I2R (b) IR2 (c) VI (d) V2/R
- Q:-
Do basic solutions also have H+(aq) ions? If yes, then why are these basic?
- Q:-
On what basis would you classify energy sources as
(a) renewable and non-renewable?
(b) exhaustible and inexhaustible?Are the options given in (a) and (b) the same?
- All Chapters Of Class 10 Science
- All Subjects Of Class 10