Question

1 mol of CH4 contains

Answer 1

13 g is one of the answer of the given question

Answer 2

HEY mate here is your answer.

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1mole of CH4 contains 6.022#10^23 CH4 molecules.
it contains 6.022#10^23#5 atoms.
it contains 6.022#10^23 C-atoms.
it contains 6.022#10^23#4 H-atoms.

Yeah as 1 mole CH4 contains 4 H-atoms therefore the molar mass of H-atom ia 1#4=4gram.
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I think your answer lies between these answers.

hope it helps you.

^_^