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Question
What is a soap ?
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Solution
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) .
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RELATED QUESTIONS
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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 |
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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.
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Green chemistry in day-to-day life is in the use of ______.


