A) \[C{{O}_{2}}\]
B) \[{{O}_{2}}\]
C) \[{{N}_{2}}\]
D) \[C{{H}_{4}}\]
Correct Answer: D
Solution :
The primitive atmosphere of the earth contained: \[{{H}_{2}}O\],\[{{H}_{2}}\],\[N{{H}_{3}}\And C{{H}_{4}}\] . The ratio was (2:2:1) of: \[N{{H}_{3}},C{{H}_{4}}\] and hydrogen.
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