Question

An organic compound A having molecular formula C₂H₄O₂ reacts with sodium metal and evolves a gas B which readily catches fire. A also reacts with ethanol in the presence of conc H₂SO₄ to form sweet smelling substance C used in making perfumes. 

(i) Identify the compounds A, B and C and write their names. 

(ii) Write balanced chemical equations to represent conversion of 

(a) compound A into compound B 

(b) compound A into compound C 

(iii) Write the chemical composition of detergents. Mention their advantage over soaps for washing clothes.

Answer 1

17. (i) A is CH₃COOH (ethanoic acid) 

B is H₂ (Hydrogen gas) 

C is CH₃COOC₂H₅ (Ethyl ethanoate)

(iii) Chemically, detergents are ammonium or sulphonate salts of long chain carboxylic acid. Detergents can be effectively used in hard water whereas soaps cannot be used.