MCQ
Find the compound ' A ' from the following reaction sequences.


- AZnS
- ✓CoS
- CMnS
- DNis


Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$(A)$ ${SO}_{3}$ $(B)$ ${NO}_{3}^{-}$ $(C)$ ${PCl}_{3}$ $(D)$ ${CO}_{3}^{2-}$
Product in above reaction is