hydroxy compounds

Question 1

conditions for formation of ester from alcohol + carboxylic acid?

Answer 1

conc HCl/H2SO4, heat

Question 2

conditions for formation of ester from alcohol + acyl chloride?

Answer 2

none (they react at room temp vigorously)

Question 3

conditions for oxidation of primary and secondary alcohol?

Answer 3

primary alcohol to aldehyde:
K2Cr2O7 (aq), H2SO4 (aq), heat with immediate distillation

if use KMnO4/heat without distillation, primary alcohol will oxidise to carboxylic acid

secondary alcohol to ketone:
K2Cr2O7(aq)/KMnO4

Question 4

conditions for iodoform test?

Answer 4

iodine (aq), NaOH (aq), warm
yellow ppt formed

Question 5

condensation for phenol + acyl chloride

Answer 5

none (they react at room temperature)
phenol + acyl chloride –> ester + HCl

Question 6

test for alcohol?

Answer 6

PCl5/SOCl2/PCl3, heat

Question 7

test for phenol?

Answer 7

neutral FeCl3 (aq)
violet colouration observed