Q69
Points of arrest for iron correspond to
A.
Stages at which allotropic forms change
AnswerB.
Stages at which further heating does not increase temperature for some time
C.
Stages at which properties do not change with increase in temperature
D.
There is nothing like points of arrest
Answer: Option A
Solution
Answer: Option A
Solution:
Points of arrest for iron correspond to Stages at which allotropic forms change