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The ratio of the masses of methane and ethane in a gas mixture is 4 : 5 . The ratio of number of their molecules in the mixture is

Options

  1. A4:5
  2. B3:2
  3. C2:3
  4. D5:4

Correct answer

B. 3:2

Step-by-step solution

n C H 4 n C 2 H 6 = m C H 4 M C 2 H 6 m C H 4 M C H 4 = 3 : 2

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