MCQ
If we plot a graph between $\log \,K$ and $\frac{1}{T}$ by Arrhenius equation, the slope is
- A$ - \frac{{{E_a}}}{R}$
- B$ + \frac{{{E_a}}}{R}$
- ✓$ - \frac{{{E_a}}}{{2.303\,R}}$
- D$ + \frac{{{E_a}}}{{2.303\,R}}$
Thus plots of ln $K$ vs $1/T $ will give slope $ = - {E_a}/RT$ or $ - {E_a}/2.303R$.
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$\left[\mathrm{CoCl}\left(\mathrm{NH}_3\right)_5\right]^{2+}, \quad\left[\mathrm{Co}(\mathrm{CN})_6\right]^{3-} \text {, }$
$(A)$ $(B)$
$\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_5\left(\mathrm{H}_2 \mathrm{O}\right)\right]^{3+}, \quad\left[\mathrm{Cu}\left(\mathrm{H}_2 \mathrm{O}\right)_4\right]^{2+}$
$(C)$ $(D)$
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Among the given complexes, number of paramagnetic complexes is .... .