AP BIOLOGY

Detailed explanation-1: -Butane is an organic compound with the formula C4H10. Butane is a saturated hydrocarbon containing 4 carbons, with an unbranched structure.

Detailed explanation-2: -C 4 H 10 has a general formula: C 2 H 2 n+2 i.e. it belongs to the alkane family (having no double and triple bonds and is therefore saturated.

Detailed explanation-3: -The answer is d) propane. Saturated hydrocarbons are hydrocarbons that do not have double bonds or triple bonds (specifically multiple bonds) in the structure. It will only contain a single bond between carbon atoms. Therefore, alkane is considered a saturated hydrocarbon.

Detailed explanation-4: -The given compound is C4H6 C 4 H 6, which does not follow the general formula of alkanes, so it is not a saturated hydrocarbon. Instead, it follows the formula CnH2n−2 C n H 2 n − 2, which is the general formula for alkynes and rings with double bonds, which are unsaturated hydrocarbons.