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Class 12 Chemistry Practice Test: Molecular Mass of Polymers
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Avg score: 68% • Most missed: “The polydispersity index of natural polymers is _________”
Class 12 Chemistry Practice Test: Molecular Mass of Polymers
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5 Questions

1. Calculate the number average molecular mass of a polymer having four different monomers A, B, C and D present in equal number. The molecular masses of the monomers are 10000, 15000, 30000 and 50000 respectively.
2. The polydispersity index of natural polymers is _________
3. Polydispersity index is defined as ______ where Mw and Mn are the weight average and number average molecular masses respectively.
4. Molecular mass of polymers are expressed as a/an _______
5. The polydispersity index can be less than 1.

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