Which is a correct general name for the molecule with formula C4H8?

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Multiple Choice

Which is a correct general name for the molecule with formula C4H8?

Explanation:
The main idea is that C4H8 fits the family of alkenes, which have the general formula CnH2n. With four carbon atoms (n = 4), that gives C4H8. The standard name for this four-carbon unsaturated hydrocarbon is butene, and it encompasses isomers such as 1-butene and 2-butene. The other options either contain oxygen in the molecule (which would change the formula to include O) or have more hydrogens (as in butane, C4H10), so they don’t match the given formula.

The main idea is that C4H8 fits the family of alkenes, which have the general formula CnH2n. With four carbon atoms (n = 4), that gives C4H8. The standard name for this four-carbon unsaturated hydrocarbon is butene, and it encompasses isomers such as 1-butene and 2-butene. The other options either contain oxygen in the molecule (which would change the formula to include O) or have more hydrogens (as in butane, C4H10), so they don’t match the given formula.

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