Question

The percentage composition of carbon by a mole in methane is ______.

पर्याय

• 75%

• 80%

• 25%

• 20%

Answer 1

The percentage composition of carbon by a mole in methane is 20%.

Explanation:

CH₄ has one atom of carbon among 5 atoms (1C + 4H).

∴ Mole % of C = `1/5 xx 100` = 20%