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ICSE Class 10 Chemistry Question 30 of 93

Organic Chemistry — Question 1

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Question 1

A compound X when treated with an organic acid Y (having vinegar like smell) in the presence of the acid Z, forms a compound P which has a fruity smell.

(a) Identify X, Y and Z.

(b) Write structural formula of X and Y.

(c) What type of compound is P?

(d) Name the above reaction.

(e) If compound X and Y both have 2 carbon atoms. Write the reaction.

Answer

(a) X, Y and Z are:

   X → Ethyl alcohol
   Y → Acetic acid
   Z → Conc. Sulphuric acid

(b) The structural formulae are shown below:

Ethyl alcohol (X)

A compound X when treated with an organic acid Y (having vinegar like smell) in the presence of the acid Z, forms a compound P which has a fruity smell. (a) Identify X, Y and Z. (b) Write structural formula of X and Y. (c) What type of compound is P? (d) Name the above reaction.(e) If compound X and Y both have 2 carbon atoms. Write the reaction. Organic Chemistry, Concise Chemistry Solutions ICSE Class 10

Acetic acid (Y)

A compound X when treated with an organic acid Y (having vinegar like smell) in the presence of the acid Z, forms a compound P which has a fruity smell. Identify X, Y and Z. Write structural formula of X and Y. What type of compound is P? Name the above reaction. If compound X and Y both have 2 carbon atoms. Write the reaction. Organic Chemistry, Concise Chemistry Solutions ICSE Class 10.

(c) Ester

(d) Esterification

(e) The reaction is given below:

C2H5OHethyl alcohol+CH3COOHacetic acid→Conc. H2SO4CH3−COO−C2H5ethyl ethanoate+H2O\underset{\text{ethyl alcohol}}{\text{C}_2\text{H}_5\text{OH}} + \underset{\text{acetic acid}}{\text{CH}_3\text{COOH}} \xrightarrow{\text{Conc. H}_2\text{SO}_4} \underset{\text{ethyl ethanoate}}{\text{CH}_3-\text{COO}-\text{C}_2\text{H}_5} + \text{H}_2\text{O}