JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
Mass of methane required to produce \(22 \mathrm{~g}\) of \(\mathrm{CO}_2\) after complete combustion is ___________\(g.\) (Given Molar mass in \(g\) mol-1 \(\mathrm{C}=12.0\) \( \mathrm{H}=1.0 \) \( \mathrm{O}=16.0)\)
- A \(5\)
- B \(9\)
- C \(8\)
- D \(12\)
Answer & Solution
Correct Answer
(C) \(8\)
Step-by-step Solution
Detailed explanation
\(\mathrm{CH}_4+2 \mathrm{O}_2 \rightarrow \mathrm{CO}_2+2 \mathrm{H}_2 \mathrm{O}\) Moles of \(\mathrm{CO}_2=\frac{22}{44}=0.5\) So, required moles of \(\mathrm{CH}_4=0.5\) \(\text { Mass }=0.5 \times 16=8 \mathrm{gm}\)
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