$\mathrm{N}^{-3}<\mathrm{O}^{-2}<\mathrm{Na}^{+}$
$IP$ onder in Triad $II$
$\mathrm{C}^{+}<\mathrm{N}^{+}<\mathrm{O}^{+}$
Lowest $IP$ in triad $-I$ $\rightarrow N^{-3}$
Highest $IP$ in triad $-II$ $\rightarrow $ $O^+$
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$CaCO _{3}( s ) \rightarrow CaO ( s )+ CO _{2}( g )$ the values of $\Delta H ^{\circ}$ and $\Delta S^{\circ}$ are $+179.1 kJ mol ^{-1}$ and $160.2\,J / K$ respectively at $298 \,K$ and $1 \,bar$. Assuming that $\Delta H ^{\circ}$ and $\Delta S ^{\circ}$ do not change with temperature, temperature above which conversion of lime-stone to lime will be spontaneous is ........... $K$
$(I)$ $CH_3COO^{\Theta}$ $(II)$ $CH_3O^{\Theta}$
$(III)$ $CH_3CH_2^{\Theta}$ $(IV)$ $CH_3SO_3^{\Theta}$