Duration: 1:57

1 views

0

Select the correct statement:
\( \mathrm{P} \)
(1) \( \mathrm{O}(\mathrm{g}) \rightarrow \mathrm{O}^{2-}(\mathrm{g}) \) is exothermic step
W
(2) \( \mathrm{Mg}^{2+}(\mathrm{g}) \rightarrow \mathrm{Mg}(\mathrm{g}) \) is endothermic step
(3) \( \mathrm{N}(\mathrm{g}) \rightarrow \mathrm{N}^{-}(\mathrm{g}) \) is endothermic step
(4) \( \mathrm{Fe}^{2+}(\mathrm{g}) \rightarrow \mathrm{Fe}^{3+}(\mathrm{g}) \) is exothermic step
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live