Related Questions

Hematite iron ore contains iron about
A 30%
B 45%
C 55%
D 70%
Which is the main reducing agent during production of iron from iron ore in a blast furnace?
A C
B CO
C CO2
D H2
Midrex process of sponge iron production uses reformed natural gas as the reducing agent, which uses iron ore in the form of
A Lumps
B Pellets
C Briquettes
D Sinter
The manufacture of iron from iron ore involves the process of
A Oxidation
B Reduction
C Fractional distillation
D Electrolysis
The manufacturing of iron from iron ore involves the process of
A Oxidation
B Reduction
C Electrolysis
D Fractional distillation
Iron content in Indian iron ore is about __________ percent.
A 80-85
B 60-65
C 40-45
D 20-25
__________ is used as a flux in the extraction of iron from iron ore (hametite) in blast furnace.
A Bauxite
B Limestone
C Quartz
D Manganese
Pig iron is produced by blast furnaces in India using mostly the iron ore named
A Hematite
B Magnetite
C Siderite
D Chalcopyrite
Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother?
A Cresylic acid
B Xanthaies
C Pine oil
D All of the above
Which of the following if present in iron ore, enhances its value?
A Alumina
B Alkali oxide
C Lime & Magnesia
D None of these

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