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प्रश्न
Shristi heated Ethanol with a compound A in presence of a few drops of concentrated sulphuric acid and observed a sweet smelling compound B is formed. When B is treated with sodium hydroxide it gives back Ethanol and a compound C.
- Identify A and C
- Give one use each of compounds A and B.
- Write the chemical reactions involved and name the reactions.
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उत्तर
- A - Ethanoic acid/ Or any other carboxylic acid,
C - Sodium salt of ethanoic acid/any other carboxylic acid/sodium ethanoate. - Use of A - dil solution used as vinegar in cooking/preservative in pickles.
Use of B - making perfumes, flavoring agent. - \[\ce{CH3COOH + C2H5OH ->[Conc H2SO4] CH3COOC2H5 + H2O}\]
\[\ce{CH3COOC2H5 + NaOH -> CH3COONa + C2H5OH}\]
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संबंधित प्रश्न
Write three different chemical reactions showing the conversion of ethanoic acid to sodium ethanoate. Write balanced chemical equation in each case. Write the name of the reactants and the products other ethanoic acid and sodium ethanoate in each case.
A student puts a drop of reaction mixture of a saponification reaction first a blue litmus paper and then on a red litmus paper. He may observe that:
(a) There is no change in the blue litmus paper and the red litmus paper turns white.
(b) There is no change in the red litmus paper and the blue litmus paper turns red.
(c) There is no change in the blue litmus paper and the red litmus paper turns blue.
(d) No change in colour is observed in both the litmus papers
propanol into propanoic acid?
Name the process in each case and write the equations of the reactions involved.
How would you distinguish experimentally between an alcohol and carboxylic acid on the basis of a chemical property?
What do you notice when acetic acid reacts with litmus?
What do you observe when acetic acid is added to sodium bicarbonate?
Explain the following term with example.
Reduction
Using appropriate catalysts, ethane can be oxidized to an alcohol. Name the alcohol formed when ethane is oxidized.
Vinegar is a solution of ______.
