Q.
A. H2(g) + I2(g) 2HI (g)
B. 2CO(g) + O2(g) 2CO2(g)
C. N2(g) + 3H2(g) 2NH3(g)
D. PCl5(g) PCl3(g) + Cl2(g)
E. None of the above
Correct choice: D
Explanation: