Question

Formulei moleculare C4H8O2 ii corespund
1. 2 formiati izomeri
2. 4 esteri izomeri
3. 2 acizi monocarboxilici izomeri
4. 3 hidroicetone (inclusiv stereoizomeri)

Answer 1

C4H8O2

hcoo-ch2-ch2-ch3
hcoo-ch(ch3)-ch3
ch3-coo-ch2-ch3
ch3-ch2-coo-ch3

ch3-ch2-ch2-cooh
h3c-ch(ch3)-cooh

h3c-co-ch(oh)-ch3,prezinta 2 stereoizomeri
h3c-co-ch2-ch2-oh
ho-h2c-co-ch2-ch3

varianta corecta este A deoarece avem 4 compusi hidroxicarbonilici