Compound Y is the sole product made when $500\,\text{cm}^3$ of ammonia reacts with $250\,\text{cm}^3$ of carbon dioxide. Every measurement is taken at r.t.p. What is the formula of Y?
- A$(\text{NH}_4)_2\text{CO}_3$
- B$\text{NH}_2\text{COONH}_4$
- C$(\text{NH}_2)_2\text{CO}$
- D$\text{NH}_4\text{COONH}_4$