1.

What are the temperature and pressure conditions when natural rubber is hydrogenated in the presence of nickel catalyst?

A. 5-10 atm and 180-200 ᵒC
B. 15-20 atm and 180-200 ᵒC
C. 30-35 atm and 100-120 ᵒC
D. 15-20 atm and 100-120 ᵒC
Answer» C. 30-35 atm and 100-120 ¬¨‚à묨¬µ‚àö‚â†C


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