Question

The reducing agent in thermite process is:

• A. $Al$
• B. $Mg$
• C. $Fe$
• D. $Si$

Answer 1

The correct option is A $Al$

Reduction of metal oxides with aluminum powder in which a huge amount of heat is liberated is called thermite process. Thermite process is very useful for the welding of broken metal parts. Aluminium is used as a reducing agent.
In Goldschmidt Aluminothermic process 'Al' is used to reduce Chromium as
${\stackrel{+3}{Cr}}_2{O}_3+2Al\to \stackrel{0}{Cr}+A{l}_2{O}_3$
Option A is correct.