Draw the correct structure for each compound.
b. 1-heptyne

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Identify the root name 'heptyne', which indicates a seven-carbon chain with a triple bond.

Determine the position of the triple bond from the name '1-heptyne', which means the triple bond starts at the first carbon.

Draw a linear chain of seven carbon atoms: C-C-C-C-C-C-C.

Place a triple bond between the first and second carbon atoms: C≡C-C-C-C-C-C.

Add hydrogen atoms to each carbon to satisfy the tetravalency of carbon, ensuring each carbon forms four bonds.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Alkynes

Alkynes are a class of hydrocarbons characterized by at least one carbon-carbon triple bond. They follow the general formula CnH2n-2, where 'n' is the number of carbon atoms. This triple bond significantly influences the physical and chemical properties of the compound, making alkynes more reactive than alkenes and alkanes.

Structural Representation

Structural representation in chemistry refers to the way in which the arrangement of atoms in a molecule is depicted. This can include Lewis structures, condensed formulas, or skeletal structures. For alkynes like 1-heptyne, the structural representation must clearly show the triple bond and the linear arrangement of carbon atoms.

Numbering of Carbon Atoms

In organic chemistry, numbering carbon atoms in a chain is crucial for identifying the position of functional groups and bonds. For 1-heptyne, the '1' indicates that the triple bond is located between the first and second carbon atoms in a seven-carbon chain. Proper numbering ensures clarity in the structure and helps in understanding the compound's reactivity and properties.

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