9)
A.
formula = CnH2nO2
denumire = acid 3-metilbutanoic (IUPAC)
acid beta-metilbutiric
acid izo-pentanoic
B.
1)
formula
H3C-CH-CH2-OH
I
CH3
denumire
H3C-CH2-CH2-CH2-OH, 1-butanol
2)
H3C-CH2-CH-CH2-OH
2-metilbutan-1-ol