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  1. What is the pH value range of human blood?

    2. A.

     7.1-7.15
    B.

     7.45-7.55
    C.

     7.22-7.28
    D.

     7.35-7.45

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    Answer : Option D

    Explanation :

    Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45. Usually the body maintains the pH of blood close to 7.40.

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