HERE IS YOUR ANSWER,
⇔ In the modern blast furnaces, the charge consists of a mixture of :
→ B) Calcined Iron Oxides + Limestone + Coke
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Here's ur ans. ⬇
In the modem blast furnaces ,the charge consists of a mixture of
↪ Calcined iron oxides + Limestone + Coke
Therefore the correct option is B)
.✌Hope it helps
1) Option A
2) Option D
3) Option D
4) Option C
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d) Formation of rust which is hydrated iron oxide and is brown in color.
When iron or iron articles are left in the contact with air and moisture for a long period of time, the its surface gets a reddish brown deposit called rust. It is an oxidation reaction. Equation:
Fe + H2O + O2 ---> Fe2O3
Fe is iron
H2O is water or moisture
O2 is oxygen
Fe2O3 is rust or iron oxide
here is the answer you are looking for
FeSO4. X H20
Hydrated iron oxide basically means hydrolysis of Feo(Ferrous oxide) that means:
Feo+H2O gives rise to Fe(OH) 3 which is nothing but an example of hydrated iron oxide the compound also known as yellow iron oxide.
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It's common knowledge that rust occurs when you leave water on a metal implement or you leave it exposed to moist air. That's because the first step in the rusting process involves the dissolution of solid iron into solution. The formula for this is:
Fe(s) → Fe2+(aq) + 2e-
The electrons produced by this reaction combine with hydrogen ions in the water as well as with dissolved oxygen to produce water:
4e- + 4H+(aq) + O2(aq) → 2H2O(l)
These two reactions produce water and iron(II) ions, but not rust. For that to form, another reaction has to occur.
The Second Step: Formation of Hydrated Iron Oxide (Rust)
The consumption of hydrogen ions that occurs as iron dissolves leaves a preponderance of hydroxide (OH-) ions in the water. The iron(II) ions react with them to form green rust:
Fe2+(aq) + 2OH-(aq) → Fe(OH)2(s)
That isn't the end of the story. The iron(II) ions also combine with hydrogen and oxygen in the water to produce iron(III) ions:
4Fe2+(aq) + 4H+(aq) + O2(aq) → 4Fe3+(aq) + 2H2O(l)
These iron ions are responsible for the formation of the reddish deposit that gradually eats holes in auto bodies and metal roofing worldwide. They combine with the extra hydroxide ions to form iron(III) hydroxide:
Fe3+(aq) + 3OH-(aq) → Fe(OH)3
This compound dehydrates to become Fe2O3.H2O, which is the chemical formula for rust.
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a) calcined iron oxides + li...