NEET Sample Paper NEET Sample Test Paper-47

  • question_answer
    Which of the following has greatest - affinity for haemoglobin?

    A) CO                  

    B) NO    

    C) \[{{\operatorname{O}}_{2}}\]                           

    D) \[C{{\operatorname{O}}_{2}}\]

    Correct Answer: B

    Solution :

    NO NO has about 1500 times greater affinity than CO for haemoglobin but fortunately, it is unable to enter the blood stream from the atmosphere. But its presence in large amount may result in the increase of\[{{\operatorname{NO}}_{2}}\]by oxidation and thus harmful.


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