Question : Observe the following chemical reactions i) Fe_2O_3 + 2Alto 2Fe + Al_2O_3 ii) ZnO + C to Zn + CO iii) Fe_2O_3 + 3C to 2Fe + CO iv) Al_2O_3 + 3C to 2Al + 3CO Which of the above reaction is wrong? How is the metal present in the wrong equation extracted? Which of the above reaction can be used to join the broken parts of the machines. Why?

Question : Observe the following chemical reactions i) Fe_2O_3 + 2Alto

1.	Question : Observe the following chemical reactions i) Fe_2O_3 + 2Alto 2Fe + Al_2O_3 ii) ZnO + C to Zn + CO iii) Fe_2O_3 + 3C to 2Fe + CO iv) Al_2O_3 + 3C to 2Al + 3CO Which of the above reaction is wrong? How is the metal present in the wrong equation extracted? Which of the above reaction can be used to join the broken parts of the machines. Why?
Answer» SOLUTION :WRONG reaction is (iv) It is extracted by electrolysis (i) is used to join broken parts `because`It is exothermic. FE is in liquid state.