1.

Name the reagents whch are used in the following conversions : (i) A primary alcohol to an aldehyde(ii) Butan-2-one to butan-2-ol (iii) Phenol to 2, 4, 6-tribromophenol

Answer»

Solution :(i) Pyridinium chlorochromate (PC C) a complex of CHROMIUM trioxide with pyridine and HCl
`CH_(3)-CH=CH-CH_(2)OH overset("PCC")rarrCH_(3)-CH=CH-CHO`
(ii)`Ni//H_(2) " Or "LiAl H_(4) " Or " NaBH_(4)`
(iii) AQUEOUS bromine or bromine water


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