Hydrogen and its compoundHard
Question
Addition of high proportions of manganese makes steel useful in making rails or raolroads, because manganese :
Options
A.gives hardness to steel
B.helps in the formation of oxides of iron
C.can remove oxygen and sulphur
D.can show highest oxidation state of + 7
Solution
Both are the functions of Mn in steel, Mn removes oxygen and sulphur as
Fe2O3 + 3Mn → 3MnO + 2Fe
MnO + SiO2 → MnSiO
slag
Fe2O3 + 3Mn → 3MnO + 2Fe
MnO + SiO2 → MnSiO
slag
Create a free account to view solution
View Solution FreeMore Hydrogen and its compound Questions
Which has least heat of hydrogenation :-...Below, some catalysts and corresponding proceses/ reactions are matched. Themismatch is :...In which case is the number of molecules of water maximum?...A metal M readily forms its sulphate MSO4 which is water - soluble. It forms its oxide MO which becomes inert on heating...A complex is prepared by mixing CoCl3 and NH3, 0.1 m solution of this complex was found to Freeze at -0.372oC. The formu...