Which of the following is a saturated hydrocarbon?

Correct option is A

The correct answer is (a) Methane.
· Methane (CH4) is a saturated hydrocarbon. Saturated hydrocarbons are also known as alkanes and contain only single bonds between carbon atoms. Methane, the simplest alkane, consists of one carbon atom bonded to four hydrogen atoms. Its single bonds make it fully saturated with hydrogen, fitting the definition of a saturated hydrocarbon.
Additional Information:
· Propylene: Propylene, also known as propene (C3H6), is an unsaturated hydrocarbon. It contains a double bond between two of its carbon atoms, which classifies it as an alkene.
· Butadiene: Butadiene (C4H6) is another unsaturated hydrocarbon with two double bonds between its carbon atoms, classifying it as a diene (specifically, a conjugated diene due to alternating double and single bonds).
· Acetylene: Acetylene (C2H2) is an unsaturated hydrocarbon containing a triple bond between its two carbon atoms, classifying it as an alkyne.