Polydispersity index is defined as ______ where Mw and Mn are the weight average and number average molecular masses respectively.(a) Mw x Mn(b) Mw/Mn(c) Mn/Mw(d) Mw – MnThis question was posed to me during a job interview.The question is from Molecular Mass of Polymers in division Polymers of Chemistry – Class 12

Polydispersity index is defined as ______ where Mw and Mn are the weig

1.	Polydispersity index is defined as ______ where Mw and Mn are the weight average and number average molecular masses respectively.(a) Mw x Mn(b) Mw/Mn(c) Mn/Mw(d) Mw – MnThis question was posed to me during a job interview.The question is from Molecular Mass of Polymers in division Polymers of Chemistry – Class 12
Answer» Correct answer is (b) Mw/Mn The explanation: 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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