allerySolubility of aldehydes falls as the alkyl chain grows:
AWarmer
BLonger
CShorter
DColder
Answer & Solution
Correct answer: B. Longer
1. Only the carbonyl end can hydrogen bond with water.
2. A longer alkyl chain makes that end count for less.
3. So solubility drops rapidly as the chain lengthens.
_Source: syllabus Chemistry Part II, Chapter 12, Aldehydes, Ketones and Carboxylic Acids._
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