SSC General Science & Technology Sample Paper NCERT Sample Paper-6

  • question_answer
    Sodium is essential for

    A)  Osmotic balance           

    B)  acid-base balance

    C) Muscle contraction

    D)  all of these

    Correct Answer: D

    Solution :

    [d] Sodium (Na) is essential for osmotic balance, acid-base balance muscle contraction and nerve conduction in animal body.

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