Related Questions

Which of the following metals can not be extracted by pyrometallurgical process from its sulphide ore?
A Copper
B Mercury
C Lead
D None of these
Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation?
A Decrease in effect
B Increase in thrust
C Develops noise
D Develops high pressure
The function of neutral flux used in the pyrometallurgy of metal extraction is to increase the __________ of the slag.
A Fluidity
B Basicity
C Acidity
D Viscosity
Which of the following is capable of acting both as an acid flux as well as a basic flux in the metal extraction from its ore?
A Silica
B Lime
C Alumina
D Fluorite
Extraction of uranium from its ore is done by __________ method.
A Chemical
B Pyrometallurgical
C Physical beneficiation
D Electrometallurgical
The method of concentrating the ore which makes use of the difference in density between ore and impurities is called
A liquation
B leaching
C levigation
D magnetic separation
Extraction of uranium from its ore is done using __________ methods.
A chemical
B pyrometallurgical
C electrometallurgical
D physical benefaction
Electrometallurgy is not involved in the extraction of __________ from its ore.
A Aluminium
B Tin
C Lead
D Both B & C
Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight
A 1.5
B 3
C 5
D 7
Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.
A 2
B 3
C 0.8
D 6

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