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Q.

Polydispersity index is defined as ______ where Mw and Mn are the weight average and number average molecular masses respectively.

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a

Mw – Mn

b

Mw x Mn

c

Mw/Mn

d

Mn/Mw

answer is B.

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Detailed Solution

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Polydispersity index (PDI) is defines as the ratio of weight average molecular mass to the number average molecular mass. It gives an idea of the homogeneity of the polymer.

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