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General Principles and processes of Isolation of Elements
easy
Nitriding is a process of heating steel in aonosphere of
A
ammonia
B
oxygen
C
carbon dioxide
D
air
Solution
Nitrating is a process of heating high carbon steels, aluminium, molybdenum etc in atmosphere of $NH _3$. Because of nitrating a case hardened surface of $N _2$ is formed on metal surface which comes from Ammonia.
Standard 12
Chemistry