answer : A ) 1.37
2 C3H6 + 9 O2 ---------------------- > 6 CO2 + 6 H2O
2 mo 9 mol 6 mol
2 mol C3H6 ------------------------------> 6 mol CO2 produced
x mol C3H6 --------------------------- > 4 .11 mol CO2 produced
x = 2 x 4.11 / 6
x = 1.37 mol
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