Subject: Physical Chemistry · Chapter: Polymer Chemistry · Topic: Viscometry Characterisation · Exam: NET JUNE 2012 · Marks: 2 · Difficulty: Medium
The number-average molar mass $\left(\overline{\mathrm{M}}_{\mathrm{N}}\right)$ and weight-average molar mass $\left(\overline{\mathrm{M}}_{\mathrm{w}}\right)$ of a polymer are obtained respectively by
(a)Osmometry and light scattering measurements
(b)Osmometry and viscosity measurements
(c)Light scattering and sedimentation measurements