MCQ
Identify $A$ in the given chemical reaction.


- A

- B

- C

- ✓








Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.


| Item $I$ | Item $II$ |
| $(a)$ Benzaldehyde | $(p)$ Mobile phase |
| $(b)$ Alumina | $(q)$ Adsorbent |
| $(c)$ Acetonitrile | $(r)$ Adsorbate |

${N_2}(g)\, + \,3{H_2}(g)\,\rightleftharpoons \,2N{H_3}\,(g)$
at constant temperature and pressure. Then the ratio of the final volume to the initial volume of gases are.