Question

The $\Delta_f H^0$ of O₃, CO₂, NH₃ and HI are 142.2, –393.3, –46.2 and + 25.9 kJ per mol respectively. The order of their increasing stabilities will be
(a) O₃, CO₂, NH₃, HI
(b) CO₂, NH₃, HI, O₃
(c) O₃, HI, NH₃, CO₂
(d) NH₃, HI, CO₂, O₃

Answer 1

${\huge {\mathfrak {Answer :-}}}$

➡️ Option (C)

That's it..