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प्रश्न
What is the role of CO in the extraction of Iron?
उत्तर
CO acts as a reducing agent due to which iron in the ore reduces to iron metal.
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संबंधित प्रश्न
Fe2O3 is reduced to spongy iron near the top of blast furance by
(A) H2
(B) CaO
(C) SiO2
(D) CO
Describe the roles of the following: SiO2 in the extraction of copper from copper matte
In the extraction of zinc from zinc blende:
(i) Give an equation to show how zinc oxide is converted to zinc.
(ii) How is impure zinc finally electro-refined?
What happens when a nickel rod is dipped into a copper sulphate solution? Justify your answer.
`[E_((Ni^(+2))/(Ni))^0 = -0.25"v" and E _(("Cu"^(+2))/("Cu"))^0 = +0.34"v"]`
Describe the role of the Cryolite in the extraction of aluminium from pure alumina.
Give the uses of zinc.
Which among the following statement is correct?
Identify a mineral for the major source of boron from the following list?
In the electrolytic process for the extraction of aluminium the electrolyte is:-
Match List - I with List - II.
| List - I | List - II | ||
| (One) | (Composition) | ||
| (A) | Siderite | (I) | FeCO3 |
| (B) | Malachite | (II) | CuCO3 · Cu(OH)2 |
| (C) | Sphalerite | (III) | ZnS |
| (D) | Calamine | (IV) | ZnCO3 |
Choose the correct answer from the options given below:
