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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता ७ वी

What are the similarities between Soap and synthetic detergent.

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प्रश्न

What are the similarities between Soap and synthetic detergent.

समानता
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उत्तर

1. Primary Use Both are used for cleaning, including washing clothes, dishes, and personal hygiene.
2. Cleaning Action Both work by removing dirt, oils, and greases from surfaces through similar chemical mechanisms (surfactant action).
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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 15: Materials we Use - Exercise [पृष्ठ ९७]

APPEARS IN

बालभारती General Science Integrated [English] Standard 7 Maharashtra State Board
पाठ 15 Materials we Use
Exercise | Q 3. (b) (i) | पृष्ठ ९७
बालभारती General Science [English] Standard 7 Maharashtra State Board
पाठ 15 Materials We Use
Exercise | Q 3. 2 | पृष्ठ १०३

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


While studying the saponification reaction, what do you observe when you mix an equal amount of colourless vegetable oil and 20% aqueous solution of NaOH in a beaker?
(A) The colour of the mixture has become dark brown
(B) A brisk effervescence is taking place in the beaker
(C) The outer surface of the beaker has become hot
(D) The outer surface of the beaker has become cold


What are the raw materials required for making soap in a laboratory (or at home)?


The sodium salt of a long chain fatty acid is called ______.


What is the advantage of detergents over soaps for washing clothes?


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


What is a soap?


We are using ______ to remove strong stains on the clothes.


The soap molecule has a


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