JEE Main Chemistry question

Chemistry General Principles and Processes of Isolation of Elements (Metallurgy)JEE Main

Not in JEE Main or NEET syllabus

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

(A)Case hardeningCorrect
(B)Tempering
(C)Sheradizing
(D)Annealing

Answer: (A)

Solution

Heating wrought-iron rods packed in charcoal powder carburises their surface, building up a hard, carbon-rich steel layer over a tough iron core — this surface-hardening (carburising) process is called case

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-147464