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प्रश्न
Distinguish between esterfication and saponification reaction with the help of the chemical equations for each.
उत्तर
Esterification reaction is opposite/reverse of saponification reaction.
In esterification, a carboxylic acid and an alcohol react to form ester in presence of acid.
RCOOH + R′OH →H+ RCOOR′ + H2O
Whereas, in saponification reaction an ester reacts with a strong base or an acid to give alcohol and carboxylic acid.
RCOOR′ + NaOH → RCOONa + R′OH
संबंधित प्रश्न
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
Why have detergents replaced soap as a washing agent?
The soap molecule has a ______.
What is the difference between the chemical composition of soaps and detergents? State in brief the action of soaps in removing an oily spot from a shirt. Why are sops not considered suitable for washing where water is hard?
Answer the following question.
In three test tubes A, B, and C, three different liquids namely, distilled water, underground water and distilled water in which a pinch of calcium sulphate is dissolved, respectively are taken. Equal amount of soap Answer is added to each test tube and the contents are shaken. In which test tube will the length of the foam (lather) be longest? Justify your answer.
Soaps were originally made from ______.
Water, coconut oil, and _______ are necessary for soap preparation.
The alkaline hydrolysis of fatty acids is termed as ______
______ molecules go and join with dirt and oil in the cloth.
What are the similarities between Soap and synthetic detergent.
