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Nitriding is a process of hardening stee...

Nitriding is a process of hardening steel by treating it inan atmosphere of

A

`NH_(3)`

B

`O_(3)`

C

`N_(2)`

D

`H_(2)S`

Text Solution

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The correct Answer is:
A
When steel is treated in the presence of `NH_(3)`, iron nitride on the surface of steel is formed which imparts a hard coating. This process is called nitriding.
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Nitriding is a process of heating steel in atmosphere of :

Assertion : Nitriding is the process of heating steel in presence of N_(2) to form iron nitrides. Reason : The surface of steel becomes hard after nitriding process.

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