MCQ
Find out the incorrect pair :
- A$ \mathrm{N}_2 \mathrm{O}=+1 $
- B$ \mathrm{~N}_2 \mathrm{O}=+2 $
- ✓$ \mathrm{~N}_2 \mathrm{O}_3=+5 $
- D$ \mathrm{NO}_2=+4 $
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.