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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Which of the following enhances leathering property of soap? - Chemistry

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प्रश्न

Which of the following enhances leathering property of soap?

विकल्प

  • Sodium carbonate

  • Sodium rosinate

  • Sodium stearate

  • Trisodium phosphate

MCQ
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उत्तर

Sodium rosinate

Explanation:

Shaving soaps contain glycerol to prevent rapid drying. A gum called rosin is added in these soaps which forms sodium rosinate which enhances lathering property of soap.

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अध्याय 16: Chemistry In Everyday Life - Multiple Choice Questions (Type - I) [पृष्ठ २३०]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
अध्याय 16 Chemistry In Everyday Life
Multiple Choice Questions (Type - I) | Q 11 | पृष्ठ २३०

संबंधित प्रश्न

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


Why do soaps not work in hard water?


Can you use soaps and synthetic detergents to check the hardness of water?


Explain the cleansing action of soaps.


Write balanced chemical equations for the action of methyl bromide on silver propanoate


How soap is prepared?


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.


What is the difference between bathing soap and washing soaps?


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 \[\ce{Na3PO4}\]

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.


Green chemistry in day-to-day life is in the use of ______.


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