Starting material for the production of styrene butadiene rubber (SBR) is________________?
Correct answer: C. Both A. & B.
- A. Ethyl alcohol
- B. Ethylene
- C. Both A. & B.
- D. Neither A. nor B.
Explanation
SBR is made from the monomers butadiene and styrene; historically, ethanol can serve as a source of butadiene, while ethylene can lead to styrene through ethylbenzene. Thus both listed materials can be starting feedstocks in the relevant manufacturing routes.
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