Introduction to organic compounds
1, Which of the following compounds is a positional isomer of 2,3-dimethylpentan-3-ol?
A C(CH3 )3CHOHCH2CH3
B CH(CH3 )2CHOHCH(CH3 )2
C CH3CHOHCH(CH3 )CH(CH3 )2
D CH3CH2CHOHCH(CH3 )2
2, What is the IUPAC name of this compound?
A 2-Bromo-1,1-dichlorohexan-6,6-diol
B 2-Bromo-1-dichlorohexan-1-diol
C 6-Bromo-5,5-dichlorohexan-1-ol
D 6-Bromo-5,5-dichlorohexan-1,1-diol
3, What is the IUPAC name of this compound?
A, But-3-en-1-ol
B, 1-hydoxybut-3-ene
C, 4-hydroxybut-1-ene
D, But-1-en-4-ol
4, Which of the following structural formulae represents a ketone?
CH3CHOHCH3
CH3CH2OCH3
CH3CH2CHO
CH3COCH3
5, Which of the following compounds is NOT a functional group isomer of CH2OHCH2CHO?
A, CH2=COHCH2OH
B, CH3CHOHCHO
C, CH3OCH2CHO
D, CH3COCH2OH
7, But-2-yne, shown below, belongs to the alkyne homologous series.
What is the general formula of an alkyne?
A, C4H6
B, C2H3
C, CnH2n-2
D, CnH2n+2
Chocolate
Benzene
Dopamine
Cyclopentene
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