The percentage composition of carbon by mole in methane is:

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JEE Mains Previous Paper 1 (Held On: 08 Apr 2019 Shift 2)
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  1. 75%
  2. 80%
  3. 25%
  4. 20%

Answer (Detailed Solution Below)

Option 4 : 20%
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JEE Main 04 April 2024 Shift 1
90 Qs. 300 Marks 180 Mins

Detailed Solution

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Concept:

Mole % of 'C' in CH4 (methane) =

Calculation:

Methane has one atom of carbon among 5 atom that is 1 carbon and 4 Hydrogen

 = 0.2 × 100 = 20%

The percentage composition is the percentage by mass of each element in a compound.

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