Chemistry · PYQ NEET UG 2019(1)

For the chemical reaction, \( \text{N}_{2(\text{g})} + 3\text{H}_{2(\text{g})} \rightleftharpoons 2\text{NH}_{3(\text{g})} \)\nthe CORRECT option is

1. \( -\frac{d[\text{N}_2]}{dt} = \frac{1}{2}\frac{d[\text{NH}_3]}{dt} \)
2. \( -\frac{d[\text{N}_2]}{dt} = \frac{1}{2}\frac{d[\text{NH}_3]}{dt} \)
3. \( 3\frac{d[\text{H}_2]}{dt} = 2\frac{d[\text{NH}_3]}{dt} \)
4. \( -\frac{1}{3}\frac{d[\text{H}_2]}{dt} = -\frac{1}{2}\frac{d[\text{NH}_3]}{dt} \)