Naming Alkynes Worksheet

Grade 9 Chemistry worksheet on naming alkynes according to IUPAC nomenclature rules.

Grade 9 Science ChemistryAlkenes and AlkynesNaming Alkynes

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Includes

Fill in the BlanksMultiple Choice2 Short Answer

Standards

HS-PS1-2

Topics

ChemistryAlkynesNomenclatureOrganic ChemistryGrade 9

6 sections · Free to use · Printable

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Read each question carefully and provide the correct IUPAC name for the given alkyne structure or draw the structure for the given name.

1. Alkynes are hydrocarbons that contain at least one carbon-carbon bond.

2. The suffix used for naming alkynes is .

3. The longest continuous chain containing the triple bond is called the chain.

4. The numbering of the carbon chain should start from the end closest to the bond.

1. Which of the following is the correct IUPAC name for CH≡CH?

Ethene

Ethane

Ethyne

Propane

2. What is the IUPAC name for an alkyne with 4 carbon atoms and a triple bond at the first carbon?

But-1-yne

But-2-yne

Butyne

1-Butyne

1. Provide the IUPAC name for the following alkyne:

CH3-CH2-C≡C-CH3

2. Provide the IUPAC name for the following alkyne:

CH≡C-CH(CH3)-CH2-CH3

1. Draw the condensed structural formula for 3-Methylpent-1-yne.

2. Draw the condensed structural formula for Hex-2-yne.