Question

Solubility of amines in water with increase in molecular mass due to size of the hydrophobic part.

• A. increases
• B. decreases
• C. smaller
• D. higher

Answer 1

Answer: (B), (D)

The correct options are
B decreases
D higher

Lower aliphatic amines are soluble in water as they can form hydrogen bonds with water molecules. Solubility decreases with increase in molar mass of amines due to increase in size of the hydrophobic alkyl part.