Formula of ruby copper or cuprite is

1.  Cu2O

2.  Cu2S

3.  CuCO3.Cu(OH)2

4.  CuFeS2

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4
Correct Answer :

Cu2O


Explanation :
No Explanation available for this question

The forth floatation process is used for the concentration of

1.  Ore having low density

2.  Ore having magnetic nature

3.  Ore having high density

4.  Ore having water soluble gangue

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4
Correct Answer :

Ore having low density


Explanation :
No Explanation available for this question

The flux used in the extraction of iron from Haematite in the blast furnace is

1.  Lime

2.  Silica

3.  Coke

4.  Quartz

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4
Correct Answer :

Lime


Explanation :
No Explanation available for this question

Ultrapure elements are obtained in the following method of metal refining

1.  Electrolysis

2.  Poling

3.  Liquation

4.  Distillation

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4
Correct Answer :

Distillation


Explanation :
No Explanation available for this question

The copper metal is mainly extracted from its

1.  Carbonate Ore

2.  Sulphide ore

3.  Sulphate ore

4.  Chloride ore

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4
Correct Answer :

Sulphide ore


Explanation :
No Explanation available for this question

In the extraction of copper, the slag formed in the blast furnace

1.  CaSiO3

2.  FesSio3

3.  Ca3(PO4)2

4.  MnSiO3

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4
Correct Answer :

FesSio3


Explanation :
No Explanation available for this question

The magnetic oxide of iron is

1.  Haematite

2.  Magnetite

3.  Siderite

4.  Limonite

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4
Correct Answer :

Magnetite


Explanation :
No Explanation available for this question

The iron formed in blast furnace is called

1.  Pig iron

2.  Wrought iron

3.  Steel

4.  Cast iron

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4
Correct Answer :

Pig iron


Explanation :
No Explanation available for this question

The metal obtained in pidgeon process is

1.  Na

2.  Mg

3.  Ca

4.  Al

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4
Correct Answer :

Mg


Explanation :
No Explanation available for this question

In the extraction of iron from haematite,the charge used is haematite,coke and lime stone in the following weight ratio

1.  1:1:1

2.  8:4:1

3.  8:1:4

4.  1:4;8

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4
Correct Answer :

8:4:1


Explanation :
No Explanation available for this question
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