SELECT * FROM question_mgmt as q WHERE id=1916 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=62 and ex_no='1' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 12th chemistry The p-Block Elements complete the following reactions i c2h4 o2

Question:

Complete the following reactions:

(i) C2H4 + O2 →

(ii) 4Al + 3O2 →

Answer:

(i) C2H4         +       3O2     →         2CO2                    +         2H2O

   Ethene             Oxygen         Carbon dyoxide               Water

 

(ii)  4Al         +       3O2        →         2Al2O3

     Aluminium       Oxygen               Alumina    


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