D-And F-Block Elements Ques 134
Question: In nitriding process of steel
[MP PET/PMT 1988; CBSE 1989]
Options:
A) Steel is heated in an atmosphere of ammonia
B) Steel is made red hot and then cooled
C) Steel is made red hot and then plunged into oil for cooling
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
The process of producing a hard coating of iron nitride on steel is called nitriding.
