Metallurgy Test

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Metallurgy Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Metals have __________ number of valence electrons.

A
1 to 2

B
1 to 3

C
4 to 7

D
2 to 5
Question 2
1 / -0

Duralumin is an alloy of:

A
Al and Fe

B
Cu and Sn

C
Ag and Cu

D
Al and Cu
Question 3
1 / -0

A substance which is added to the ore in order to remove impurities during smelting.

A
Flux

B
Matrix

C
Gangue

D
Minerals
Question 4
1 / -0

_______ is the main ore used for the extraction of iron.

A
Cryolite

B
Bauxite

C
Haematite

D
Calamite
Question 5
1 / -0

All ores are minerals, while all minerals are not ores because:

A
The metals can’t be extracted economically from all the minerals.

B
Minerals are complex compounds.

C
The minerals are obtained from mines.

D
All the above.
Question 6
1 / -0

Elements in molten state, on mixing and the cooling from a homogeneous called alloy are:

A
Metals

B
Non-metals

C
Metalloids

D
All of the above
Question 7
1 / -0

In electrolytic reduction of alumina the reaction of oxidation of anode by oxygen produces:

A
N₂ gas

B
H₂ gas

C
CO₂ gas

D
O₂ gas
Question 8
1 / -0

Which one of the following is not true for metals?

A
Metals are good conductor of electricity.

B
Metals are malleable and ductile.

C
Metals form non-polar covalent compounds.

D
Metals will have 1 or 2 or 3 electrons in their valence shell.
Question 9
1 / -0

Bauxite is ______in nature.

A
acidic

B
basis

C
neutral salt

D
amphoteric
Question 10
1 / -0

Red mud is a mixture of ____________ insoluble impurities.

A
Al₂O₃.2H₂O and Na₂CO₃

B
NaAlO₂ and Ferric Oxide (Fe₂O₃)

C
Al(OH)₃ and Ferrous Hydroxide

D
Ferric Oxide (Fe₂O₃) & Silica (SiO₂)

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Metallurgy Test - 1

Result

Metallurgy Test - 1

Score

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Rank

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SHARING IS CARING

Question 1

1 to 2

1 to 3

4 to 7

2 to 5

Question 2

Al and Fe

Cu and Sn

Ag and Cu

Al and Cu

Question 3

Flux

Matrix

Gangue

Minerals

Question 4

Cryolite

Bauxite

Haematite

Calamite

Question 5

The metals can’t be extracted economically from all the minerals.

Minerals are complex compounds.

The minerals are obtained from mines.

All the above.

Question 6

Metals

Non-metals

Metalloids

All of the above

Question 7

N2 gas

H2 gas

CO2 gas

O2 gas

Question 8

Metals are good conductor of electricity.

Metals are malleable and ductile.

Metals form non-polar covalent compounds.

Metals will have 1 or 2 or 3 electrons in their valence shell.

Question 9

acidic

basis

neutral salt

amphoteric

Question 10

Al2O3.2H2O and Na2 CO3

NaAlO2 and Ferric Oxide (Fe2O3)

Al(OH)3 and Ferrous Hydroxide

Ferric Oxide (Fe2O3) & Silica (SiO2)

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N₂ gas

H₂ gas

CO₂ gas

O₂ gas

Al₂O₃.2H₂O and Na₂CO₃

NaAlO₂ and Ferric Oxide (Fe₂O₃)

Al(OH)₃ and Ferrous Hydroxide

Ferric Oxide (Fe₂O₃) & Silica (SiO₂)