Identify the compounds ‘A’, ‘B’ and ‘C’ in the following reactions:

Question

(a) Identify the compounds ‘A’, ‘B’ and ‘C’ in the following reactions:

(i) C₂H₅OH + CH₃CH₂COOH \(\overset{conc.H_2SO_4}\longrightarrow\)  'A' H₂O

(ii) CH₃COOC₂H₅ + NaOH → 'B' + C₂H₅OH

(iii) CH₃COONa +NaOH(CaO) \(\overset{heat}\longrightarrow\) 'C' +Na₂CO₃

(b) A cyclic compund 'X' has molecular formula C₆H_6. It is unsaturated and burns with a sooty flame. Identify 'X' and write its structural formula. Will it decolourise bromine water not and why?

Answer 1

(a) (i) A – CH₃CH₂COOC₂H₅ 

(ii) B – CH₃COOH 

(iii) C – CH₄ 

(b) The compound X is benzene (C₆H₆). The structural formula is 

Generally, bromine water gets decolourised when it is added to an unsaturated compound. But the double bonds in the benzene are delocalised which increases its stability or decreases its reactivity. Benzene will not undergo addition reaction with bromine water. 

Therefore, benzene does not decolourise bromine water