8. For combustion of one kg of carbon the quantity of oxygen required (air contains 23% by wight of oxygen) is
A. 11.6 kg
B. 2.62 kg
C. 3.67 kg
D. 8 kg
8. For combustion of one kg of carbon the quantity of oxygen required (air contains 23% by wight of oxygen) is
A. 11.6 kg
B. 2.62 kg
C. 3.67 kg
D. 8 kg