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Question
Soap is a salt of ______ and sodium hydroxide.
Options
white cement
soap
detergent
wearing of bones
tooth decay
hard
soft
Portland
fatty acid
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Solution
Soap is a salt of fatty acid and sodium hydroxide.
RELATED QUESTIONS
What are the raw materials required for making soap in a laboratory (or at home)?
State one advantage of soaps over detergents.
Give the reason of formation of scum when soaps are used with hard water.
A student is testing water to know which is best for cleansing purposes with soaps. He would find that the cleansing action of soaps is best when he uses water obtained from
(a) rain
(b) tap
(c) hand pump
(d) pond
Name three chemicals responsible for the surface activity of various detergents.
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Match the following
| 1. | Soap | C6H5 OH |
| 2. | Cement | CaSO4.2H2O |
| 3. | Fertilizers | NaOH |
| 4. | Gypsum | RCC |
| 5. | Phenol | NPK |
______ to remove strong strains on the clothes.
The soap molecule has a
Why do soaps not work effectively in hard water?
