Consider the following collection of polymer chains.
| No. of molecules | 10 | 5 | 4 | 2 | 1 |
| Molecular weight gm.mol-1 | 2800 | 3000 | 1200 | 3600 | 1000 |
Mer unit is ethylene. Atomic weights: carbon (12) and, hydrogen (1). Calculate number average degree of polymerisation.
A. 32.32
B. 90.91
C. 106.61
D. 116.13
Answer: Option B
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