The solubility of aliphatic alcohols in water progressively decreases as the size of the alkyl group increases. What is the fundamental molecular reason for this phenomenon?

Question

Prashant Kotian · Accepted Answer

Correct answer: B. Alcohols are soluble in water due to hydrogen bonding. However, the alkyl group is hydrophobic (water-repelling). As the size of the alkyl chain increases, its non-polar character and van der Waals forces dominate the molecule, decreasing overall solubility in polar water.

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