Question

An organic compound ‘X’ is a liquid at room temperature. It is also a very good solvent and has the molecular formula C₂H₆O. Upon oxidation ‘X’ gives ‘Y’. ‘Y’ releases a gas ‘W’ with brisk effervescence on reacting with NaHCO₃. X reacts with Y in the presence of conc.H₂SO₄ to give another compound ‘Z’ which has a pleasant smell. Z. 

(a) Give the chemical name and chemical formula of Y. 

(b) How will you test for the gas ‘W’? 

(c) Depict the formation Y and Z using chemical equations. 

(d) Name the reaction of formation of ‘Z’. 

(e) Give any one use of ‘Z’?

Answer 1

Ethanoic acid   Y= H₃COOH 

(a) The gas evolved ‘W’ turns Lime water milky 

(b) C₂H₅OH—--- Acid.K₂Cr₂O₇—---> CH₃COOH 

 (X)                                                          (Y) 

C₂H₅OH + CH₃COOH —----> CH₃COOC₂H₅ + H₂O 

 (X)            (Y)                                   (Z) 

(c) Esterification Rn 

(d) Anyone use - perfumes/cosmetics; 

C₂H₅OH----------H₂SO₄ -->  C₂H₄ + H₂O