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प्रश्न
Soaps were originally made from ______.
पर्याय
proteins
animal fats and vegetable oils
chemicals extracted from the soil
foam booster
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उत्तर
Soaps were originally made from animal fats and vegetable oils.
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संबंधित प्रश्न
A student takes four test tubes marked P, Q, R and S of 25 mL capacity and fills 10 mL of distilled water in each. He dissolves one spoon full of four different salts in each as − KCl in P, NaCl in Q, CaCl2 in R and MgCl2 in S. He then adds about 2 mL of a sample of soap solution to each of the above test tubes. On shaking the contents of each of the test tubes, he is likely to observe a good amount of lather (foam) in the test tubes marked
(a) P and Q
(b) R and S
(c) P, Q and R
(d) P, Q and S
Explain the formation of scum when hard water is treated with soap.
What is a detergent?
What is a soap?
What is the difference between soaps and detergents? State, in brief, the cleansing action of soaps in removing an oily spot from a fabric. Why are soaps not very effective when a fabric is washed in hard water? How is this problem resolved?
What are the differences between Bath soap and soap for washing clothes?
Explain why often coloured spots are formed on clothes during washing.
Water, coconut oil, and _______ are necessary for soap preparation.
______ are substances which can undergo chemical changes to produce certain materials.
______ molecules go and join with dirt and oil in the cloth.
