The most abundant element in the Earth's crust is .............. .

  • A
    $O$
  • B
    $Si$
  • C
    $H$
  • D
    $C$

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Given below are two statements:
Statement $I$: Oxygen being the first member of group $16$ exhibits only $-2$ oxidation state.
Statement $II$: Down the group $16$ stability of $+4$ oxidation state decreases and $+6$ oxidation state increases.
In the light of the above statements,choose the most appropriate answer from the options given below:

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