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Chemistry · PYQ NEET UG 2026
हिन्दीThe amount of carbon dioxide evolved upon complete combustion of \( 116\text{ g} \) of \( n \)-butane is (Given: atomic mass in amu \( \text{H} = 1 \), \( \text{C} = 12 \) and \( \text{O} = 16 \))
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Correct answer · Option A
\( 352\text{ g} \)
Explanation
Combustion equation: \( 2\text{C}_4\text{H}_{10} + 13\text{O}_2 \rightarrow 8\text{CO}_2 + 10\text{H}_2\text{O} \). \( 116\text{ g} \) of butane is \( 2\text{ moles} \), which produces \( 8\text{ moles} \) of \( \text{CO}_2 \), i.e., \( 8 \times 44 = 352\text{ g} \).
