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Question

PDI for natural polymers is generally close to:


A
zero
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B
1
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C
10
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D
100
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Solution

The correct option is C $$1$$
PDI abbreviates as polydispersity index of polymer.
$$PDI=\displaystyle\frac{\bar{M_w}}{M_n}$$

For natural polymers, $$PDI=1$$
and for synthesis polymers, $$PDI>1$$.

Hence, option B is correct.

Chemistry

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