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    Hi, im doing this past paper, and im on question 14, and as you can see its a fairly simple question. The answer is B, but apart from the CH3 and NH2 groups i can't tell the difference between B and D. Any help?
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    The CH3 and NH2 groups are indeed the only differences. The fact that compound X oxidises with 2,4-dinitrophenylhydrazine to give a yellow precipitate but does not react with Fehling's or Benedict's solution shows it must have an aliphatic carbonyl group but that group cannot be an aldehyde or ketone. As it reacts with nitrous acid to give a yellow precipitate it must have ammonia in it somewhere. The only molecule with both is B
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    Cheers, clearly i need to revise chemical tests and the preperation of phenol as well :P
 
 
 
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