Q.
A. 3Fe(s) + 4 H2O(g) ⇔Fe3O4(s) + 4H2(g)
B. N2(g) + 3H2(g) ⇔ 2NH3(g)
C. 2SO2(g) + O2(g) ⇔2SO3(g)
D. H2(g) + I2(g) ⇔ 2HI(g)
E. None of the above
Correct choice: B
Explanation: