Which of the following compounds is a geometric isomer of 2-butene?

Which of the following compounds is a geometric isomer of 2-butene?

Step 1: Understand what 2-butene is. It is a molecule with four carbon atoms and a double bond between the second and third carbon atoms.
Step 2: Learn about geometric isomers. These are compounds that have the same molecular formula but different arrangements of atoms in space due to the presence of a double bond.
Step 3: Identify the two forms of 2-butene. The two geometric isomers of 2-butene are cis-2-butene and trans-2-butene.
Step 4: Define cis-2-butene. In cis-2-butene, the two methyl groups (CH3) are on the same side of the double bond.
Step 5: Define trans-2-butene. In trans-2-butene, the two methyl groups (CH3) are on opposite sides of the double bond.
Step 6: Determine which isomer is being asked for. The question asks for a geometric isomer of 2-butene, which can be either cis or trans.
Step 7: Conclude that trans-2-butene is indeed a geometric isomer of 2-butene.

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