Vapour phase refining can be carried out in case of

(1) Ni

(2) Zr

(3) Ti

(4) All of the above

Subtopic:  Refining Process |
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In the metallurgy of copper, matte contains

1. Cu2S + Cu2O

2. Cu2S + FeS

3. FeS + FeO

4. Cu2O + FeO

Subtopic:  Metallurgy of individual elements |
 72%
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Which of the following metal is purified by distillation process?

1. Zn                            

2. Fe

3. Al

4. Cu

Subtopic:  Refining Process |
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The purest form of iron is-

1. Cast iron

2. Steel

3. Wrought iron

4. Grey cast iron

Subtopic:  Metallurgy of individual elements |
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Out of following which metal can be purified by Van Arkel method?

(1) Ti

(2) Zr

(3) Hf

(4) All of the above

Subtopic:  Refining Process |
 92%
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Bauxite, an ore of aluminium is purified by

1. Hall's process

2. Serpeck's process

3. Bayer's process

4. All of the above

Subtopic:  Metallurgy of individual elements |
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Which is mismatched?

1. Zincite - ZnO

2. Calamine - ZnCO3

3. Siderite - FeCO3

4. Malachite - CuCO3

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
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The ore having two different metal atoms is

1. Haematite

2. Galena

3. Magnetite

4. Copper pyrites

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
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Which of the following is not a carbonate ore?

1. Siderite

2. Zincite

3. Calamine

4. Dolomite

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
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Which of the following is not an ore of silver?

1. Pyrargyrite

2. Argentite

3. Anglesite

4. All of the above

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 54%

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