MCQ
The oxide which forms dimer is
- A$N_2O_5$
- B$N_2O$
- ✓$NO_2$
- D$N_2O_3$
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| Column$-I$ | Column$-II$ |
| $(a)$ $\mathrm{XeF}_{4}$ | $(i)$ pyramidal |
| $(b)$ $\mathrm{XeF}_{6} $ | $(ii)$ square planar |
| $(c)$ $\mathrm{XeOF}_{4}$ | $(iii)$ distorted octahedral |
| $(d)$ $\mathrm{XeO}_{3} $ | $(iv)$ square pyramidal |
code : $(a) \quad (b)\quad (c) \quad (d)$

Product $'B'$ is