Advertisements
Advertisements
प्रश्न
What is a soap ?
उत्तर
Soaps:Soaps are sodium or potassium salts of higher acids such as lauric (C11H23COOH) , palmitic acid(C15H31COOH) , stearic acid (C15H31COOH) , oleic acid (C17H33COOH) or linoleic acid (C17H31COOH) .
APPEARS IN
संबंधित प्रश्न
Explain cationic detergents.
Why is bithional added to soap?
Write the chemical equation for preparing sodium soap from glyceryl oleate . Structural formulae of the compounds are given below.
(C17H32COO)3C3H5 – Glyceryl oleate
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.
Why do soaps not work in hard water?
Can you use soaps and synthetic detergents to check the hardness of water?
Explain the mechanism of cleansing action of soaps.
Write balanced chemical equations for the action of hydrogen bromide on styrene in the presence of a peroxide
Write balanced chemical equations for the action of methyl bromide on silver propanoate
Which of the following enhances leathering property of soap?
Glycerol is added to soap. It functions ______.
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?
What is the side product of soap industry? Give reactions showing soap formation.
What is the difference between bathing soap and washing soaps?
What are fillers and what role these fillers play in soap?
Match the soaps given in Column I with items given in Column II.
| Column I | Column II |
| (i) Soap chips | (a) dried miniature soap bubbles |
| (ii) Soap granules | (b) small broken pieces of soap formed from melted soaps |
| (iii) Soap powder | (c) soap powder + abrasives + builders \[\ce{(Na2CO3,Na3PO4)}\] |
| (iv) Scouring soap | (d) soap powder + builders like \[\ce{Na2CO3}\] and \[\ce{Na3PO4}\] |
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?
Green chemistry in day-to-day life is in the use of ______.
Self-cleansing windows are example of the ______.
