Which one of the following 0.10 M aqueous solutions will exhibit the largest freezing point depression?
Solutions · Class 12 · JEE Main Previous Year Question
Which one of the following 0.10 M aqueous solutions will exhibit the largest freezing point depression?
- a
glycine
- b
hydrazine
- c✓
- d
glucose
Strategy:\n> Freezing point depression is proportional to the total number of particles in the solution (). Identify the solute with the highest van't Hoff factor ().\n\nAnalyzing Solutes:\n1. Glycine: Amino acid, behaves as a zwitterion in neutral water; negligible dissociation ().\n2. Hydrazine: Weak base; negligible dissociation ().\n3. : Salt of a strong base and strong acid anion. In water, it dissociates significantly: ().\n4. Glucose: Non-electrolyte ().\n\nConclusion:\n provides the most particles per unit concentration, thus exhibiting the largest freezing point depression.\n\n
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