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The density and associated crystallinity for two polypropylene samples are as follows:
density, g/cm3      crystallinity, %      1.20                            50      1.44                            80The percent crystallinity of polypropylene sample having a density of 1.3 g/cm3 is
Options:
A .  54
B .  64
C .  74
D .  84
Answer: Option B


-NA-



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