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The four elements called "big-four" whic...

The four elements called "big-four" which make up 95% of all elements found in a living system are

A

C, H, O, N

B

C, H, O , P

C

C, H, O, S

D

C, N, O , P

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The correct Answer is:
A
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Knowledge Check

  • In Mendeleev's Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later ?

    A
    Germanium
    B
    Chlorine
    C
    Oxygen
    D
    Silicon

  • An element essentially found in all explosives is

    A
    N
    B
    S
    C
    C
    D
    P

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