MCQ
All electrons on the $4p$ sub-shell must be characterized by the quantum number $(s)$
- A$n = 4,\,m = 0,\,s = \pm \frac{1}{2}$
- ✓$l = 1$
- C$l = 0,\,s = \pm \frac{1}{2}$
- D$s = \pm \frac{1}{2}$
$s=\pm 1 / 2$
$l=1 \quad s=0, s=\pm 1 / 2$
$s=\pm 1 / 2$
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(IMAGE)
$[A]$ $I$ and $III$ follow $\mathrm{S}_{\mathrm{N}} 1$ mechanism
$[B]$ $I$ and $II$ follow $\mathrm{S}_{\mathrm{N}} 2$ mechanism
$[C]$ Compound $IV$ undergoes inversion of configuration
$[D]$ The order of reactivity for $I$, $III$ and $IV$ is: $IV$ $>$ $I$ $>$ $III$