2. (a) Name the compound CH3CH2OH and identify its functional group.
(b) Give a chemical test to distinguish between ethanol and ethanoic acid.
(C) Name the product formed when an organic acid reacts with an alcohol in
presence of an acid catalyst. What is the name assigned to this type of reaction?
Answers
Answer:
(a) Name of the compound is Ethanol
Functional group - Alcohol
(a) The compound CH3CH2OH is called ethanol, and its functional group is an alcohol.
(b) One chemical test to distinguish between ethanol and ethanoic acid is the reaction with sodium carbonate (Na2CO3) solution. When sodium carbonate solution is added to ethanol, it does not produce any visible reaction. However, when sodium carbonate solution is added to ethanoic acid, it produces effervescence (bubbling) due to the release of carbon dioxide gas. lcohols, Acids, and Esters.
Aman Raj
Name the compound CH3CH2OH and identify its functional group.
(b) Give a chemical test to distinguish between ethanol and ethanoic acid.
(c) Name the product formed when an organic acid reacts with an alcohol in presence of an acid catalyst. What is the name assigned to this type of reaction?
(a) The compound CH3CH2OH is called ethanol, and its functional group is an alcohol.
(b) One chemical test to distinguish between ethanol and ethanoic acid is the reaction with sodium carbonate (Na2CO3) solution. When sodium carbonate solution is added to ethanol, it does not produce any visible reaction. However, when sodium carbonate solution is added to ethanoic acid, it produces effervescence (bubbling) due to the release of carbon dioxide gas.
(c) When an organic acid reacts with an alcohol in the presence of an acid catalyst, the product formed is an ester. This type of reaction is called an esterification reaction. In this reaction, the acid catalyst (such as sulfuric acid) protonates the carbonyl oxygen of the organic acid, making it more electrophilic. The alcohol then attacks the electrophilic carbonyl carbon, leading to the formation of an ester and a molecule of water. For example, the reaction between ethanol and ethanoic acid in the presence of sulfuric acid catalyst produces the ester ethyl ethanoate (also known as ethyl acetate) and water:
CH3COOH + CH3CH2OH → CH3COOCH2CH3 + H2O