3) Determine the relationship between the following pairs of structures (enantiomers,
diastereomers, constitutional isomers, or identical).
CO2H
(a)
H
CO2H
HOâ‚‚C
COâ‚‚H
H
HO
OH
HO
H
H
OH
H
HO H
H.
OH
(b)
HO
CH2CH3
CH3
OH
CH3
H-C-OH
(c)
H-C-OH
(d)
CH2CH3
CH3
HCOĐť
HO-CH
CH2CH3
ă‚ă‚
ă‚ ă‚
H-
HO-
CH3
-OH
-H
CH2CH3
HO
H
CH3
H-
-OH
CH2CH3
CH3