Spelter is impure form of

1.  Zn

2.  Ag

3.  Cu

4.  Fe

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4
Correct Answer :

Zn


Explanation :
No Explanation available for this question

The slag formed in the blast furnace during the extraction of iron from hematite is

1.  Ca3(PO4)2

2.  CaSiO3

3.  FeSiO3

4.  MnSiO4

View Answer  
4
Correct Answer :

CaSiO3


Explanation :
No Explanation available for this question

Commercial zinc is refined by

1.  Liquation

2.  Poling

3.  Electrolysis

4.  Amalgamation

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4
Correct Answer :

Liquation


Explanation :
No Explanation available for this question

Leaching process is not a stage in the metallurgy of

1.  Silver

2.  Iron

3.  Aluminium

4.  Copper

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4
Correct Answer :

Iron


Explanation :
No Explanation available for this question

Carbon cannot be used to reduce

1.  ZnO

2.  SnO2

3.  Fe2O3

4.  Al2O3

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4
Correct Answer :

Al2O3


Explanation :
No Explanation available for this question

Zone refining method is used for refining

1.  Al

2.  Ge

3.  Cu

4.  Fe

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4
Correct Answer :

Ge


Explanation :
No Explanation available for this question

Which of the following is not a carbonate ore

1.  Siderite

2.  Calamine

3.  Lime stone

4.  Flourospar

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4
Correct Answer :

Flourospar


Explanation :
No Explanation available for this question

In blast furnace hematite is reduced to iron mainly by

1.  Coke

2.  H2 gas

3.  CO gas

4.  Water gas

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4
Correct Answer :

CO gas


Explanation :
No Explanation available for this question

Which of the following metal occurs in native state

1.  Ca

2.  Au

3.  Zn

4.  Al

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4
Correct Answer :

Au


Explanation :
No Explanation available for this question

The ore of aluminium is

1.  Cassiterite

2.  Magnesite

3.  Carnallite

4.  Bauxite

View Answer  
4
Correct Answer :

Bauxite


Explanation :
No Explanation available for this question
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