MCQ
The element which is the most abundant in the earth crust is
- A$O$
- B$S$
- C$Al$
- ✓$H$
- 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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Statement $(I)$ : In the Lanthanoids, the formation of $\mathrm{Ce}^{+4}$ is favoured by its noble gas configuration.
Statement $(II)$ : $\mathrm{Ce}^{+4}$ is a strong oxidant reverting to the common $+3$ state.
In the light of the above statements, choose the most appropriate answer from the options given below: