MCQ
The elements with atomic number $10, 18, 36, 54$ and $86$ are all
- ALight metals
- ✓Inert gases
- CHalogens
- DRare-earths
✓
Answer
Correct option: B.
Inert gases
b
$(b)$ Inert gases, these have $n{s^2}n{p^6}$ configuration.
$(b)$ Inert gases, these have $n{s^2}n{p^6}$ configuration.
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$\begin{matrix}
ONa\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{3}}-C=C{{H}_{2}}\xrightarrow{HC\equiv CH}\xrightarrow{{{H}^{+}}}\xrightarrow[Pd-BaS{{O}_{4}}]{{{H}_{2}}}\xrightarrow[\Delta ]{A{{l}_{2}}{{O}_{3}}} \\
\end{matrix}$
→ONa\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
C{{H}_{3}}-C=C{{H}_{2}}\xrightarrow{HC\equiv CH}\xrightarrow{{{H}^{+}}}\xrightarrow[Pd-BaS{{O}_{4}}]{{{H}_{2}}}\xrightarrow[\Delta ]{A{{l}_{2}}{{O}_{3}}} \\
\end{matrix}$
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O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
||\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, \\
{{C}_{6}}{{H}_{5}}-C-C{{H}_{2}}-{{C}_{6}}{{H}_{5}} \\
\end{matrix}$
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