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प्रश्न
Following type of nom-ionic detergents are present in liquid detergents, emulsifying agents and wetting agents. Label the hydrophilic and hydrophobic parts in the molecule. Identify the functional group (s) present in the molecule.
उत्तर
Functional groups present in the molecule are:
(i) Ether, and
(ii) primary alcoholic group
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संबंधित प्रश्न
Explain cationic detergents.
Why is bithional added to soap?
Write the chemical equation for preparing sodium soap from Glyceryl palmitate . Structural formulae of the compounds are given below.
(C15H31COO)3C3H5 – Glyceryl palmitate
Write the chemical equation for preparing sodium soap from glyceryl oleate . Structural formulae of the compounds are given below.
(C17H32COO)3C3H5 – Glyceryl oleate
Can you use soaps and synthetic detergents to check the hardness of water?
How soap is prepared?
Glycerol is added to soap. It functions ______.
What is a soft soap?
If soap has high alkali content it irritates skin. How can the amount of excess alkali be determined? What can be the source of excess alkali?
Why is it safer to use soap from the environmental point of view?
What is the side product of soap industry? Give reactions showing soap formation.
Match the detergents given in Column I with their uses given in Column II.
| Column I | Column II |
(i)  |
(a) Dishwashing powder |
(ii)  |
(b) Laundry soap |
| (iii) \[\ce{C17H33CO\overset{-}{O}\overset{+}{N}a + Na2CO3 + Rosin}\] | (c) Hair conditioners |
| (iv) \[\ce{CH3(CH2)16COO(CH2CH2O)nCH2CH2OH}\] | (d) Toothpaste |
Assertion: Transparent soaps are made by dissolving soaps in ethanol.
Reason: Ethanol makes things invisible.
Assertion: Sodium chloride is added to precipitate soap after saponification.
Reason: Hydrolysis of esters of long-chain fatty acids by alkali produces soap in colloidal form.
Which of the following is not a correct statement?
