MCQ
The element which is the most abundant in the earth crust is
  • A
    $O$
  • B
    $S$
  • C
    $Al$
  • $H$

Answer

Correct option: D.
$H$
d
- Two lone pair one oxygen

- Molecule is ' $v$ ' shaped

- Bond angle is less than $104.5^{\circ}\left(102^{\circ}\right)$

- $O \cdot S \cdot$ of ' $O$ ' is $+2$

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