Carbon disulfide burns in oxygen to yield car- bon dioxide and sulfur dioxide according to the chemical equation CS2(l) + 3 O2(g) CO2(g) + 2 SO2(g) . If 1.25 mol of CS2 is combined with 1.39 mol of O2, identify the limiting reactant.

1. SO2

2. O2

3. CO2

4. CS2