#2- d,e,f #3 Explain how solubility tests could be used to differentiate between
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Question
#2- d,e,f #3 Explain how solubility tests could be used to differentiate between: a phenol and a carboxylic acid. a phenol that contains electron-withdrawing groups and a phenol that contains electron-donating groups. a carboxylic acid and an amine. l -broinooctane and dibutyl ether. 2-pentyne and pentane. 2-mtropentane and 2-aininopentane. What chemical tests could be used to differentiate between: cyclohexanone, cyclohexanol. cyclohexylamme, and cyclohexanecarboxylic acid. 4-methyl- 1-pentanol, 4-methyl-2-pentanol, and 2-methyl-2-pentanol. In the Tollens test, what substance is being oxidized and what substance is being reduced?Explanation / Answer
2(d) 1 - bromoocatne is insoluble in water but dibutylether is partially soluble in water.
(3) (a)
Cyclohexanone + 2,4 -dinitrophenylhydrazine ----------------> orange colour precipiatate of cyclhexanone-2,4-dinitrophenylhydrazone
(b) Cyclohexanol + Acetic acid -----------heat------------> sweet smelling esters
(c) Cyclohexylamine + CHCl3 + NaOH --------------------> Foul smelling isocyanide
(d) Cyclohexanecarboxylic acid + NaOH ----------------> Soluble-----------HCl --------------> Regenerates.
(4) In Tollen's test aldehyde being oxidised to carboxylate and Silver ions are reduced to silver metal.
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