MCQ
Compound $(A)$ is


- A

- ✓

- C

- D







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| Column $- I$ | Column $-II$ | ||
| $(A)$ | $V_2O_5$ | $(i)$ | Haber's process |
| $(B)$ | $Ni$ | $(ii)$ | Prepartion of $O_2$ from $KClO_3$ |
| $(C)$ | $MnO_2$ | $(iii)$ | Conversion of $SO_2$ to $SO_3$ |
| $(D)$ | $Fe$ | $(iv)$ | Hydrogenation of oils |

| $[A_2]$ | $[B]$ | ${-d\,[A_2]/dt}$ |
| $0.1$ | $0.2$ | $1 \times {10^{ - 2}}\,M{s^{ - 1}}$ |
| $0.2$ | $0.2$ | $2 \times {10^{ - 2}}\,M{s^{ - 1}}$ |
| $0.2$ | $0.4$ | $8 \times {10^{ - 2}}\,M{s^{ - 1}}$ |
Order of reaction w.r.t. $A_2$ and $B$ are respectively
