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Question
Which of the following iron exist between 910°C and 1403°C?
Options:
A .  α-iron
B .  β-iron
C .  γ-iron
D .  δ-iron
Answer: Option C
Gamma iron is an allotropic form of iron existing between the temperature 910°C and 1400°C and having a face-centered cubic lattice.
It is a metallic, non-magnetic allotrope of iron or a solid solution of iron with an alloying element.

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