SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ii and i
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i and iv
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i and iii
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iii and iv
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Detailed explanation-1: -The most important are sodium silicate (water glass), sodium carbonate (soda ash), sodium perborate, and various phosphates.
Detailed explanation-2: -Detergents and similar products like soap use sulfonic acid to break down the surface tension between water and grease, dirt, and other grime for a more effective clean.
Detailed explanation-3: -Preparation of Detergents The hydrocarbons are first transformed to alcohol before reacting with ethylene oxide. The surfactants created are then reacted with sulphur-containing acids to produce a new type of anionic surfactant. Detergent molecules clump together to create micelles, which make them water soluble.
Detailed explanation-4: -Soap is made by treating fats with a strong solution of lye (NaOH). The ester functional groups are hydrolyzed releasing its alcohol portion as glycerol and the acid portions as the a mixture of the sodium salts of the fatty acid. The glycerol is water soluble and is separated from the fatty acid salts.