Glucose gets oxidised to six carbon carboxylic acid (gluconic acid)
on reaction with a mild oxidising agent like bromine water This
indicates that the carbonyl group is present as an aldehydic group CHO
(CH
OH)4
(CH
)4
OH
CH2OH
CH2OH
Br water
2
COOH
Gluconic acid
5 Acetylation of glucose with acetic anhydride gives glucose
pentaacetate which confirms the presence of five –OH groups