1960Chemical EngineeringMedium
Presence of SO2 in furnace gases attacks the ferrous metal by way of________?
AAccelerating the rate of scaling
BAttacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at
CCausing metal embrittlement
DAll A., B. and C.
Correct answer
D. All A., B. and C.
Explanation
The correct answer is All A., B. and C..