Q30 · CSIR-NET Chemistry, December 2014

Paper: CSIR-NET December 2014 · Subject: Physical Chemistry · Chapter: Polymer Chemistry · Topic: Molecular Weight Averages · Marks: 2 · Difficulty: Easy

For a polydispersed macromolecular colloid, osmometry gives
(a)weight-average molecular weight
(b)number-average molecular weight
(c)both weight-average and number average molecular weight
(d)viscosity-average molecular weight
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Osmotic pressure is a colligative property — it counts molecules — so osmometry gives the number-average molar mass.

Study loop for Polymer Chemistry

1. Practise the PYQsPrevious-year questions, with answers

· Browse this chapter in the app