WHAT_IS_THE_COPOLYMER_COMPOSITION_FOR_AZEOTROPIC_COPOLYMERIZATION_OF_ACRYLONITRILE_AND_1,3-BUTADIENE_AT_50¬¨‚ÀË¬¨¬µ‚ÀÖ‚Â†C,_GIVEN_THAT_R1=0.02_AND_R2=0.30??$#

WHAT_IS_THE_COPOLYMER_COMPOSITION_FOR_AZEOTROPIC_COPOLYMERIZATION_OF_A

1.	WHAT_IS_THE_COPOLYMER_COMPOSITION_FOR_AZEOTROPIC_COPOLYMERIZATION_OF_ACRYLONITRILE_AND_1,3-BUTADIENE_AT_50¬¨‚ÀË¬¨¬µ‚ÀÖ‚Â†C,_GIVEN_THAT_R1=0.02_AND_R2=0.30??$#
A.	0.21
B.	0.417
C.	0.84
D.	0.62
Answer» C. 0.84

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