In the process of electrolytic refining of metal M, the anode, the cathode and the electrolyte are
impure M, pure M , the metal salt
the metal salt, impure M, any salt
the metal salt pure M any salt
pure M impure M the metal salt
Flux is used to remove
Basic impurities
Acidic impurities
All types of impurities
Both acidic and basic impurities
The metal getting from blast furnace is
Steel
Medium steel
Pig iron
Mild steel
The main function of roasting is
To remove the volatile matter
To convert the ore into oxide
Both (a) and (b)
To make slag
During the extraction of iron from haematite ore, the produced slag is
BeSiO3
MgSiO3
FeSiO3
CaSiO3
Which of the following metal is leached by cyanide process?
Ag
Na
Al
Cu
Which of the following statements is incorrect regarding metals?
Metals are ductile
Metals are poor conductors of heat
Metals are sonorous
Metals have a shiny appearance
Which is the reducing agent in the extraction of Iron?
CaCO3
FeO
CO
SiO2
Metals are seperated from
Ore
Compounds
Minerals
Metallic oxides
Which of the following substances cannot be used as a starting material for the preparation of ammonia?
Urea
Nitrobenzene
Ammonium salts
Metal nitrides
