Chapter 2, Problem 3VCQ

Figure 2.24 Which of the following statements is

false?

1. Molecules with the formulas CH₃CH₂COOH and C₃H₆O₂ could be structural isomers.

Molecules must have a double bond to be cis-trans isomers.

To be enantiomers, a molecule must have at least three different atoms or groups connected to a central carbon.

To be enantiomers, a molecule must have at least four different atoms or groups connected to a central carbon.