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An organic compound (A) of molecular formula C_(2)H_(4) reacts with alkaline potassium permanganate and gives compound (B) of molecular formula C_(2)H_(6)O_(2). Compound (B) when heated with anhydrous zinc chloride forms ( C) of molecular formula C_(2)H_(4)O. Identify A, B and C and explain the reactions. |
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Answer» SOLUTION :(i) An organic compound with molecular FORMULA `C_(2)H_(4)` is ethylene. Ethylene reacts with potassium permanganate to give compound B (ethylene glycol). `UNDERSET((A))(CH_(2)=CH_(2) + H_(2)O + (O) overset("alk" KMnO_(4)) to underset((B)) overset(CH_(2)-OH)underset(CH_(2)-OH)| .` (ii) Ethylene glycol when heated with anhydrous `ZnCl_(2)` forms compound C. `underset(CH_(2)-OH)overset(CH_(2)OH)|overset(ZnCl_(2))underset(-H_(2)O)to CH_(3)CHO` 
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