Which of the following was most likely to have been absent in free for – McqOptions

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1.	Which of the following was most likely to have been absent in free form in the primordial atmosphere at the time of origin of life [CPMT 1974, 76, 78, 82, 90, 98; AFMC 1985; NCERT 1971, 72; KCET 1998; MP PMT 1994, 99; CBSE PMT 2004; BVP 2004; BCECE 2005]
A.	\[{{O}_{2}}\]
B.	\[C{{H}_{4}}\]
C.	\[{{H}_{2}}\]
D.	\[N{{H}_{3}}\]
Answer» B. \[C{{H}_{4}}\]

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