Question

One mole of CH4 contains -
A) 4.0g atoms of Hydrogen
B) 3.0g atoms of Hydrogen
C)6.02 x 1023 atoms Of H
D)1.81×10^3 atoms of CH4​

Answer 1

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Correct option is

B

4g atom of hydrogen

1 mole of methane contains 1 mole of C, 2 mole of H.

12g of C (1 mole=12g)

4g of H (2 moles)

4gm of Hydrogen is the answer.