What is the volume of oxygen required to burn complete 45 cm³ of methane at s.t.p?

A. 135.0 cm³
B. 180.0 cm³
C. 45.0 cm³
D. 90.0 cm³

Correct Answer:

Option D – 90.0 cm³

Explanation

CH4(g) + 2O2(g) → 2H2O(g) + CO(g)
1 volume of methane will react with 90 cm3 of oxygen at s.t.p