GATE XE · 2025 · XE-F
Question 131: Polymer Technology
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Question 131
XE-FNAT2 marksNeeds review
A rubber contains 70 wt% butadiene (molar mass = 54 g/mol), 20 wt% isoprene (molar mass = 68 g/mol), 5 wt% sulfur and 5 wt% carbon black. Assume that all the sulfur is present in crosslinks.
If each sulfide crosslink contains an average of two sulfur atoms, the percentage of possible crosslinks that are joined by vulcanization is ________%. (Round off to one decimal place)
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2025XE-F
GATE XE 2025 · Paper 1
Engineering Sciences · Original paper archive
- Section
- Section XE-F
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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