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VMMC VMMC Medical Solved Paper-2007

  • question_answer
    According to one of the most accepted theory, the earth atmosphere before any life had originated consisted of \[{{H}_{2}}O,\,{{H}_{2}},\,N{{H}_{2}}\] and

    A) \[C{{H}_{4}}\]

    B) \[{{O}_{2}}\]                                               

    C) \[{{N}_{2}}\]                     

    D)        none of these

    Correct Answer: A

    Solution :

    Most accepted theory for origin of life is Oparin theory of chemical evolution. According to this hypothesis, primitive atmosphere chiefly consisting of methane, ammonia, water vapour, hydrogen gas. So primitive atmosphere was reducing in nature.


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