Final answer:
It is B. false that trans-4-hexen-3-ol can be synthesized from 2 equivalents of acetaldehyde, as the former is a six-carbon molecule with specific functional groups that cannot be constructed from just two two-carbon acetaldehyde molecules.
Step-by-step explanation:
The question "trans-4-hexen-3-ol can be synthesized from 2 equivalents of acetaldehyde" is addressing a synthetic organic chemistry concept. The answer to this is false. While acetaldehyde, or ethanal, is indeed an important precursor in many organic syntheses and can be used to synthesize various alcohols, trans-4-hexen-3-ol cannot be directly synthesized from two equivalents of acetaldehyde.
Acetaldehyde contains only two carbon atoms per molecule, and trans-4-hexen-3-ol is a six-carbon molecule with a trans-configured double bond at the fourth position and a hydroxyl group (-OH) at the third position. There are other methods and reagents necessary to build up the carbon chain and install the correct functional groups in their precise locations to synthesize trans-4-hexen-3-ol. Therefore, simply connecting two molecules of acetaldehyde would not adequately construct this compound.