MCQ
Marsh gas is :
- A$ \mathrm{C}_6 \mathrm{H}_6 $
- ✓$ \mathrm{CH}_4 $
- C$ \mathrm{C}_2 \mathrm{H}_2 $
- D$ \mathrm{CO} $
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Use $K_{ sp }( ZnS )=1.25 \times 10^{-22}$ and
Overall dissociation constant of $H _2 S , K_{ NET }=K_1 K_2=1 \times 10^{-21}$
