EasyRe-NEET 2026
+4 / -1
The amount of carbon dioxide evolved upon complete combustion of 116 g of n-butane is (Given : atomic mass in amu H = 1, C = 12 and O = 16)
A
352 g
B
322 g
C
176 g
D
362 g
Explanation
n-butane is C₄H₁₀ nC₄H₁₀ = 116/58 = 2 mol. C₄H₁₀ + 13/2 O₂ → 4CO₂ + 5H₂O 1 mol C₄H₁₀ gives 4 mol of CO₂ 2 mol C₄H₁₀ gives 8 mol of CO₂ WCO₂ = 8 × 44 = 352 g
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