The Most Hydrophobic Molecule Is

Question

The most hydrophobic molecule is
A)C2H5COOH
B)C2H6
C)R-NH2
D)C3H7OH
E)C5H10O5

Accepted Answer

The molecule with the longest hydrophobic chain is likely to be the most hydrophobic, and the hydrocarbon chain in Choice B has 16 carbons, which is longer than the chains in the other choices. Additionally, Choice B does not contain a hydrophilic functional group like a carboxylic acid or an alcohol, which would decrease its hydrophobicity.