MCQ
Find exothermic reaction
- A$F_{\left( g \right)}^ - \to {F_{\left( g \right)}} + {e^ - }$
- B$B{e_{\left( g \right)}} + {e^ - } \to Be_{\left( g \right)}^ - $
- ✓${O_{\left( g \right)}} + {e^ - } \to O_{\left( g \right)}^ - $
- D${O_{\left( g \right)}} + 2{e^ - } \to O_{\left( g \right)}^{ - 2}$
