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An Organic Acid X is a Liquid, Which Often Freezes During Winter Time in Cold Countries, Having the Molecular Formula C2h4o2. on Warming It with Methanol in the Presence of a Few Drops of Concentrated Sulphuric Acid, a Compound Y with a Sweet Smell is Formed. (A) Identify X and Y. Also Write Their Formulae Showing the Functional Group Present in Them. (B) Write a Chemical Equation for the Reaction Involved. - CBSE Class 10 - Science

ConceptImportant Carbon Compounds - Ethanoic Acid (Acetic acid)

Question

An organic acid X is a liquid, which often freezes during winter time in cold countries, having the molecular formula C2H4O2. On warming it with methanol in the presence of a few drops of concentrated sulphuric acid, a compound Y with a sweet  smell is formed.
(a) Identify X and Y. Also write their formulae showing the functional group present in them.
(b) Write a chemical equation for the reaction involved.

Solution

(a) The organic acid, X, which often freezes in the winters in cold countries, is ethanoic acid. It has the molecular formula CH3COOH.
The formula with its functional group is represented as:

When ethanoic acid is warmed with methanol in the presence of a few drops of concentrated sulphuric acid, the compound 'Y' with sweet fragrance is formed. This compound is called methyl ethanoate, and its molecular formula is CH3COOCH3
The formula with its functional group is represented as:

(b) The chemical equation of the above stated reaction is as follows:

CH_3 COOH + C_2 H_5 OH  CH_3 COOC_2 H_5 + H_2O

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Solution An Organic Acid X is a Liquid, Which Often Freezes During Winter Time in Cold Countries, Having the Molecular Formula C2h4o2. on Warming It with Methanol in the Presence of a Few Drops of Concentrated Sulphuric Acid, a Compound Y with a Sweet Smell is Formed. (A) Identify X and Y. Also Write Their Formulae Showing the Functional Group Present in Them. (B) Write a Chemical Equation for the Reaction Involved. Concept: Important Carbon Compounds - Ethanoic Acid (Acetic acid).
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