The metal used in storage batteries is:

1. Cu

2. Sn

3. Pb

4. Ni

Subtopic:  Batteries & Salt Bridge |
 76%
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Silver obtained by argentiferrous lead is purified by:

1. distillation

2. froth floatation

3. cupellation

4. reacting with KCN

Subtopic:  Refining Process |
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Which process is not used in purification of bauxite?

1. Hall's method

2. Baeyer's method

3. Serpek's method

4. Frankland's method

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination | Metallurgy of individual elements |
 67%
From NCERT
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Chloride ore among the following is:

1. malachite

2. magnesite

3. magnetite

4. Karnalite

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 71%
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Chalcogens are: 

1. hydrocarbons 

2. ore forming elements 

3. oxide forming elements

4. those having ability to catenate

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 51%
From NCERT
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Which pair of elements can form alloy?

1. Zn and Cu

2. Fe and Hg

3. Fe and C

4. C and Pt

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
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Cupellation process is used in the metallurgy of:

1. copper

2. silver

3. lead

4. iron

Subtopic:  Refining Process |
 67%
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Liquation is used to purify:

1. Pb

2. Sn

3. Bi

4. All

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 60%
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Blood haemoglobin contains:  

1. Al

2. Mg

3. Cu

4. Fe

Subtopic:   DNA, RNA & Metal Ions |
 92%
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Wolframite ore contains:

1. Zn

2. W

3. Hf

4. Au

Subtopic:  Intro - Flux, Leaching, Roasting & Calcination |
 74%
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