Question

The number average molar mass and weight average molar mass of a polymer are obtained respectively by

• A. osmometry and light scattering measurements
• B. osmometry and viscosity measurements
• C. light scattering and sedimentation measurements
• D. viscosity and light scattering measurements

Answer 1

Answer: (C)

Number average molar mass is determined by colligative properties and weight average molar mass by method which depend upon mass of individual molecules like light scattering and sedimentation