Displayed formula for pentene, which option is correct?

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Multiple Choice

Displayed formula for pentene, which option is correct?

Explanation:
Alkenes have a carbon–carbon double bond, and the name tells you how many carbon atoms are in the main chain. Pentene has five carbons in the chain and includes a C=C bond. So the displayed formula that shows five carbon atoms in a chain with a double bond between two of them represents pentene. The other options would show shorter carbon chains (two, three, or four carbons) and correspond to ethene, propene, or butene, not pentene.

Alkenes have a carbon–carbon double bond, and the name tells you how many carbon atoms are in the main chain. Pentene has five carbons in the chain and includes a C=C bond. So the displayed formula that shows five carbon atoms in a chain with a double bond between two of them represents pentene. The other options would show shorter carbon chains (two, three, or four carbons) and correspond to ethene, propene, or butene, not pentene.

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