JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry
The percentage composition of carbon by mole in methane is ........... \(\%\)
- A \(80\)
- B \(20\)
- C \(75\)
- D \(25\)
Answer & Solution
Correct Answer
(B) \(20\)
Step-by-step Solution
Detailed explanation
In \(CH_4\) Mole of carbon \(n_C = 1\) Mole of hydrogen \(= n_H = 4\) \(\%\) of \(n_C\) \( = \frac{{{n_C}}}{{{n_C} + {n_H}}} \times 100 = \frac{1}{5} \times 100 = 20\% \)
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