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The axles are made by heating rods of ir...

The axles are made by heating rods of iron embedded in charcoal powder. This process is known as:

A

Tempring

B

Annealing

C

Nitriding

D

Case hardening

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The correct Answer is:
D
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MBD PUBLICATION-TRANSITION METALS (d-BLOCK ELEMENTS)-QUESTION BANK
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