Question -
The mass ratio of carbon to hydrogen in methane is 3:1. How much amount of hydrogen is required to react with 36 g of carbon to form methane?
Options:
A .  10 g
B .  12 g
C .  16 g
D .  30 g
Answer: Option B : B The chemical formula of methane is CH4.The carbon to hydrogen mass ratio in it is 3:1. 3 gof carbon requires one gram of hydrogen. So,36 gof carbon requires =363×1=12g of hydrogen
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