What is the weight of oxygen required for the complete combusion of 2.8 kg of ethylene?

Options

(a) 2.8 kg
(b) 6.4 kg
(c) 9.6 kg
(d) 96 kg

Correct Answer:

9.6 kg

Explanation:

C₂H₄ + 3 O₂ → 2CO₂ + 2 H₂O
28 kg of C₂H₄ undergo complete combustion by = 96 kg of O₂
2.8 Kg of C₂H₄ undergo complete combustion by = 9.6 kg of O₂