Final Answer:
CH₃CH=CHCHCH₃ exhibits cis-trans isomerism, determined by the arrangement of methyl (CH₃) and hydrogen (H) groups on either side of the carbon-carbon double bond. If these groups are on the same side, it's cis; if on opposite sides, it's trans.
Step-by-step explanation:
Cis-trans isomerism arises when there is restricted rotation around a carbon-carbon double bond. In the given compound, the double bond is between the second and third carbon atoms, and the substituents on these carbons determine the isomeric forms. If the substituents on either side of the double bond are on the same side, it is a cis isomer; if they are on opposite sides, it is a trans isomer.
To determine the isomeric nature, let's examine the compound. CH₃CH=CHCHCH₃ has a methyl (CH₃) group and a hydrogen (H) on each carbon adjacent to the double bond. If the methyl groups are on the same side, it's a cis isomer; if they are on opposite sides, it's a trans isomer. Visualizing the arrangement, we can conclude that the compound indeed exhibits cis-trans isomerism.
Understanding the geometric arrangement of atoms in molecules is crucial in predicting their physical and chemical properties. In this case, the presence of a carbon-carbon double bond introduces the possibility of cis-trans isomerism, providing insight into the compound's structural diversity and potential variations in its properties.
It's essential to recognize the significance of geometric isomerism in organic compounds, as it can influence their reactivity, stability, and biological activity. A thorough understanding of these concepts is fundamental in the field of organic chemistry.
The complete question is:
"Is cis-trans isomerism possible in the compound CH₃CH=CHCHCH₃, and if so, what is the geometric arrangement of substituents around the carbon-carbon double bond?"