MCQ
Laughing gas is prepared by heating
- A$N{H_4}Cl$
- B${(N{H_4})_2}S{O_4}$
- C$N{H_4}Cl + NaN{O_3}$
- ✓$N{H_4}N{O_3}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.



$CS_2 + 3O_2 \,\,\to \,\, 2SO_2 + CO_2$