1. 1.2-Methyl-3-ethylpentane 2.3-Methyl-2-ethylpentane 3.3-Ethyl-2-methylpentane 4.2-Ethyl-3-methylpentane 5.1-Methyl-2-ethylpentane What is the name of the compound?

2. 1.2-Methyl-3-ethylpentane 2.3-Methyl-2-ethylpentane 3.3-Ethyl-2-methylpentane 4.2-Ethyl-3-methylpentane 5.1-Methyl-2-ethylpentane What is the name of the compound?

3. 1.Ester 2.Carboxylic acid 3.Ketone 4.Amine 5.Amide What functional group is highlighted in the molecule below?

4. 1.Ester 2.Carboxylic acid 3.Ketone 4.Amine 5.Amide What functional group is highlighted in the molecule below?

5. 1.Carboxylic acid 2.Ketone 3.Aldehyde 4.Ester 5.Ether What functional group is highlighted in the molecule?

6. 1.Carboxylic acid 2.Ketone 3.Aldehyde 4.Ester 5.Ether What functional group is highlighted in the molecule?

7. A molecule containing four carbons and a single alkyne would have the molecular formula ___________. CCCC 1.C 4 H 4 2.C 4 H 6 3.C 4 H 8 4.C 4 H 10

8. Correct Answer: There are two isomers of four- carbon alkynes (shown here), and each contains six H atoms. 1.C 4 H 4 2.C 4 H 6 3.C 4 H 8 4.C 4 H 10

9. The correct IUPAC name of the compound drawn below is _________. 1.2-Methyl-3,4- diethylhexane 2.3,4-Diethyl-2- methylhexane 3.3,4-Diethyl-5- methylhexane

10. Correct Answer: 1 2 3 4 5 6 1.2-Methyl-3,4- diethylhexane 2.3,4-Diethyl-2- methylhexane 3.3,4-Diethyl-5- methylhexane The explanation is given on the following slide.

11. Correct Answer: 1 2 3 4 5 6 The longest hydrocarbon chain (outlined in red) has six carbons. The first numbered C is that closest to a substituent, so methyl is at C2 and ethyl at C3 and C4. Alphabetically, ethyl is before methyl.