In 2-hexene, where is the carbon-carbon double bond located?

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Multiple Choice

In 2-hexene, where is the carbon-carbon double bond located?

Explanation:
In naming alkenes, the location of the carbon–carbon double bond is given by the lowest possible locant for the bond. For a six-carbon chain, if the double bond is between the second and third carbons, the name is 2-hexene because numbering from the end that gives the bond the smallest number yields 2. If you started from the other end, you’d place the bond between C4 and C5, which is a larger locant and not preferred. The structure is CH3-CH=CH-CH2-CH2-CH3, showing the double bond right after the first CH3 group.

In naming alkenes, the location of the carbon–carbon double bond is given by the lowest possible locant for the bond. For a six-carbon chain, if the double bond is between the second and third carbons, the name is 2-hexene because numbering from the end that gives the bond the smallest number yields 2. If you started from the other end, you’d place the bond between C4 and C5, which is a larger locant and not preferred. The structure is CH3-CH=CH-CH2-CH2-CH3, showing the double bond right after the first CH3 group.

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