The reducing agent used in thermite process is ___________. 1. Carbon 2. Aluminium 3. Iron 4. Sodium
Correct answer: (a)
Solution: Thermite process is very useful for the welding of broken metal parts. When Aluminum powder reacts with iron oxide or chromium oxide, a large amount of heat is released and about a temperature of 35000C is attained which is enough to weld broken metallic parts.