

MCQOPTIONS
Saved Bookmarks
1. |
144 grams of C₅H₁₂ is burnt with 64 grams O₂, and 44 grams of CO₂ is formed, what is the percentage of excess O₂? |
A. | 25% |
B. | 50% |
C. | 75% |
D. | 100% |
Answer» B. 50% | |