Distinguish between esterification and saponification reactions with the help of the chemical equations for each. State one use of each (i) esters, and (ii) saponification process.
Distinguish between esterification and saponification reactions with the help of the chemical equations for each. State one use of each (i) esters, and (ii) saponification process.
Esterification is a chemical reaction in which an acid reacts with an alcohol to form an ester and water. The general equation for esterification is: R-COOH + R'-OH R-COO-R' + H2O. Saponification is a chemical reaction in which an ester reacts with a base to form a carboxylic acid and an alcohol. The general equation for saponification is: R-COO-R' + NaOH R-COO-Na+ + R'-OH. One use of esters is in the manufacture of perfumes and fragrances. One use of the saponification process is in the manufacture of soap.
Marking Scheme
- 1/2 for correct equations
- 2/1 for correct uses
Hint
Recall the definitions of esterification and saponification reactions and their general chemical equations.
Quick Oral Answer
Esterification and saponification are two important chemical reactions in organic chemistry. Esterification involves the reaction of an acid with an alcohol to form an ester and water, while saponification involves the reaction of an ester with a base to form a carboxylic acid and an alcohol. Esters are used in the manufacture of perfumes and fragrances, while the saponification process is used in the manufacture of soap.
Analysis & Explanation
Esterification and saponification are two important chemical reactions in organic chemistry. Esterification involves the reaction of an acid with an alcohol to form an ester and water, while saponification involves the reaction of an ester with a base to form a carboxylic acid and an alcohol. Esters are used in the manufacture of perfumes and fragrances, while the saponification process is used in the manufacture of soap.
Common Mistakes
- 1confusing esterification and saponification reactions
- 2writing incorrect chemical equations
Interesting Facts
Esters are used in the manufacture of perfumes and fragrances because of their pleasant smells.
The saponification process is used in the manufacture of soap because it produces a mild and cleansing product.
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Frequently Asked Questions
How many marks does this question carry in CBSE Class 10 Science 2017?
This question carries 2 marks in the CBSE Class 10 Science 2017 examination.
Which chapter does this question come from in Science?
This question is from the chapter "Carbon and its Compounds" in the CBSE Class 10 Science syllabus.
What topic does this question cover in Science?
This question covers the topic "Esters and Saponification" from CBSE Class 10 Science.
Has this question appeared in other CBSE Science papers?
Yes, a similar question appeared in the 2017 CBSE Class 10 Science paper.
What type of question is this in the CBSE Class 10 Science 2017 paper?
This is a Short Answer question from Section A in the CBSE Class 10 Science 2017 paper.