Introduction to organic compounds
1, Which of the following compounds is a positional isomer of 2,3-dimethylpentan-3-ol?
A ​C(CH​3 )​3CHOHCH​2CH​3
B CH(CH​3 )​2CHOHCH(CH​3 )​2
€‹C CH​3CHOHCH(CH​3 )CH(CH​3 )​2
D CH​3CH​2CHOHCH(CH​3 )​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?
CH​3CHOHCH3
CH​3CH​2OCH​3
CH​3CH​2CHO
CH​3COCH​3
5, Which​ ​of​ ​the​ ​following​ ​compounds​ ​is​ ​NOT​ ​a​ ​functional​ ​group​ ​isomer​ ​of CH​2OHCH​2CHO?
A, CH​2=COHCH2OH
B, CH​3CHOHCHO
C, CH​3OCH​2CHO
D, CH​3COCH​2OH
​6, How​ ​many​ ​structural​ ​isomers​ ​have​ ​the​ ​molecular​ ​formula​ ​C​7H​16?
A, 5
B, 6
C, 7
D, 8
​7, But-2-yne,​ ​shown​ ​below,​ ​belongs​ ​to​ ​the​ ​alkyne​ ​homologous​ ​series.
What​ ​is​ ​the​ ​general​ ​formula​ ​of​ ​an​ ​alkyne?
A, C​4H​6
€‹B, C​2H​3
C, C​nH​2n-2
€‹D, C​nH​2n+2
Chocolate
Benzene
Dopamine
Cyclopentene
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