Class 12 Chemistry Metallurgy General Principles and Processes of Isolation of Elements



The reducing agent used in thermite process is ___________.
1. Carbon
2. Aluminium
3. Iron
4. Sodium
(a)
2
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 is attained which is enough to weld broken metallic parts.

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general principles and processes of isolation of elements
metallurgical operations
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general principles and processes of isolation of elements
metallurgical operations