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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$2 A ( g ) \rightleftharpoons A _{2}( g )$
at $400\, K$ has $\Delta G ^{\circ}=+25.2\, kJ mol ^{-1}$.
The equilibrium constant $K _{ C }$ for this reaction is $...... \times 10^{-2}$. (Round off to the Nearest integ $\left[\right.$ Use $: R=8.3\, J mol ^{-1} K ^{-1}, \ln 10=2.3$
$\left.\log _{10} 2=0.30,1\, atm =1\, bar \right]$
$[$ antilog $(-0.3)=0.501]$