General Principles and Processes of Isolation of Elements  MCQs

MCQs of General Principles and Processes of Isolation of Elements

Showing 1 to 10 out of 154 Questions
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1.
Which is the ore of aluminium?
(a) Bauxite
(b) Haemetite
(c) Copper pyrites
(d) Zinc blende
Answer:

Option (a)

2.
Which is the ore of copper?
(a) Bauxite
(b) Haematite
(c) Copper pyrites
(d) Zinc blende
Answer:

Option (c)

3.
Which is the ore of zinc ?
(a) Bauxite
(b) Haematite
(c) Copper pyrites
(d) Zinc blende
Answer:

Option (d)

4.
Which is the ore of iron ?
(a) Bauxite
(b) haematite
(c) Copper pyrites
(d) Zinc blende
Answer:

Option (b)

5.
Which metal is refined by zone refining method ?
(a) Copper
(b) Zinc
(c) Silicon
(d) Aluminium
Answer:

Option (c)

6.
Which metal is refined by electrolysis method ?
(a) Mercury
(b) Zinc
(c) Tin
(d) Silicon
Answer:

Option (b)

7.
What is name of the method used in refining of aluminium ?
(a) Van Arkel
(b) Bessemerisation
(c) Hall-Herault
(d) Heitler-London
Answer:

Option (c)

8.
What is called the strongly heating of ore and converted to oxide ?
(a) Roasting
(b) Distillation
(c) Liquefaction
(d) Electrolysis
Answer:

Option (a)

9.
In which method do the ranges of temperature play an important role ?
(a) Electrolysis
(b) Zone refining
(c) Blast furnace
(d) Liquation
Answer:

Option (c)

10.
During electrolysis impurities of noble metals which are not oxidized get collected at anode. This mass (of noble metals) is known as_____.
(a) Anode mud
(b) Slag
(c) Matte
(d) Flux
Answer:

Option (a)

Showing 1 to 10 out of 154 Questions
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