

MCQOPTIONS
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1. |
_SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at$? |
A. | 1:3 |
B. | 3:1 |
C. | 1:2 |
D. | 2:1 |
Answer» B. 3:1 | |