MCQ
The element which is essential in nitrogen fixation is
- AZinc
- BCopper
- ✓Molybdenum
- DBoron
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| List$-I$ | List$-II$ |
| $(a)$ $Ne _{2}$ | $(i)$ $1$ |
| $(b)$ $N _{2}$ | $(ii)$ $2$ |
| $(c)$ $F _{2}$ | $(iii)$ $0$ |
| $(d)$ $O _{2}$ | $(iv)$ $3$ |
Choose the correct answer from the options given below:
