The following graph is obtained for an ideal solution containing a non-volatile solute $x$-and $y$-axis represent, respectively
Observe the following statements about dry cell
I. It is a primary battery.
II. Zinc vessel acts as cathode.
III. A paste of moist $\mathrm{NH}_4 \mathrm{Cl}, \mathrm{MnO}_2$ and $\mathrm{ZnCl}_2$, is present between two electrodes
IV. The potential of this cell is 1.5 V .
The correct statements are
For a reaction, the graph of $\ln k$ (on $y$-axis) and $\frac{1}{T}$ (on $x$-axis) is a straight line with a slope $-2 \times 10^4 \mathrm{~K}$. The activation energy of the reaction (in $\mathrm{kJ} \mathrm{mol}^{-1}$ ) is ( $R=8.3 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}$ )
Match the following
| $$ \text { List-I (Reaction) } $$ |
$$ \text { List-II (Catalyst) } $$ |
||
|---|---|---|---|
| (A) | Hydrogenation of vegetable oils | I. | Ni |
| (B) | Decomposition of potassium chlorate | II. | $\mathrm{MnO}_2$ |
| (C) | Oxidation of $\mathrm{SO}_2$ in lead chamber process | III. | Pt |
| (D) | Oxidation of ammonia in Ostwald's process | (IV) | $\mathrm{NO}(g)$ |
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