Final answer:
The statement is false. Alkenes and Aldehydes have different physical properties due to their structural differences, reactivity, and polarity.
Step-by-step explanation:
The statement Alkenes and Aldehydes exhibit weak anisotropic effects is false. Alkenes and Aldehydes actually exhibit different physical properties due to the nature of their bonding and structural differences. Alkenes are characterized by having a carbon-carbon double bond (=), which makes them quite reactive, and they can show structural isomerism; for example, 1-butene and 2-butene are structural isomers with different properties. On the other hand, Aldehydes contain a carbonyl group (C=O), which is polar and allows for dipole-dipole interactions with water, and while they cannot form hydrogen bonds with themselves, they can form weak hydrogen bonds with other molecules, such as water.
Furthermore, molecules with the formulas CH3 CH2COOH and C3H6O2 could indeed be structural isomers, meaning that they have the same molecular formula but different structural arrangements. This adds to the complexity and the wide variety of possible isomers for organic compounds.