question_answer

Which of the following statements about the given reaction is/are incorrect? \[F{{e}_{2}}{{O}_{3}}+2Al\xrightarrow{\lg nited}2Fe+A{{l}_{2}}{{O}_{3}}\]

I. The mixture of \[F{{e}_{2}}{{O}_{3}}\]and Al is ignited by inserting a magnesium ribbon and then burning it.

II.   The reaction is used for welding the broken parts of iron machinery, railway tracks, etc.

III. The whole process is called aluminothermy.

IV. The reaction is highly endothermic.

A)  I and III only                

B)  I and IV only    

C)         II and III only   

D)         IV only