Inorganic Chemistry MCQs - Metals and Metallurgy Part 1

# Non metals are:
A. Malleable
B. Solid
C. Ductile
D. Brittle

# Substances that reacts with infusible impurities present in an ore to form fusible mass is:
A. Mattle
B. Gangue
C. Slag
D. Flux


# Malachite is an ore of:
A. Zinc
B. Copper
C. Iron
D. Sodium

# Arsenic is a _______.
A. Non metal
B. Metal
C. Metalloid
D. None

# Dolomite is the _______ form of magnesium.
A. Carbonate
B. Sulphate
C. Oxide
D. Chloride

# Acidic flux is:
A. CaCO3
B. CaO
C. SiO2
D. MgO

# The process of converting hydrated alumina to anhydrous alumina is known as:
A. Roasting
B. Smelting
C. Calcination
D. Cupellation

# The chief ore of tin is:
A. Cerrusite
B. Cassiterite
C. Anglesite
D. Cinnabar

# Electrolytic reduction method is used in the extraction of:
A. Highly electropositive element
B. Highly electronegative element
C. Inert metals
D. Transitional metals

# Froth floatation process is used in the metallurgy of:
A. Oxide ore
B. Sulphide ore
C. Chloride ore
D. Amalgam

# Froth floatation process for purification of sulphide ore is based on:
A. Absorption
B. Adsorption
C. Reduction
D. Oxidation

# An essential metal in amalgam is:
A. Gold
B. Any alkali metal
C. Copper
D. Mercury

# The agent used to remove impurities from the ore is:
A. Slag
B. Flux
C. Gangue
D. Catalyst

# Acidic flux is used for the removal of:
A. Basic flux
B. Basic gangue
C. Acidic gangue
D. Slag

# The heating of pyrites to remove sulphur is known as:
A. Bessemerisation
B. Calcination
C. Roasting
D. Smelting

# The waste material present in an ore(mineral) is called:
A. Flux
B. Alloy
C. Gangue
D. Slag

# In aluminothermic process, Al is used :
A. As reducing agent
B. As oxidizing agent
C. To increase the volume
D. To lower the heat of furnace

# In the extraction of copper from its sulphide ore the metal is formed by the reduction of Cu2O with:
A. FeS
B. CO
C. Cu2S
D. SO2

# The metallurgical process in which metal is obtained in fused stated is called:
A. Smelting
B. Roasting
C. Calcination
D. Froth floatation

# In Goldschmidt Aluminothermic process, reducing agent used is:
A. Coke
B. Al powder
C. Na
D. Ca

# Bauxite is an ore of:
A. Iron
B. Copper
C. Lead
D. Aluminium

# The ore of lead is:
A. Calamine
B. Cinnabar
C. Galena
D. Magnetite

# In blast furnace iron oxide is reduced by:
A. Silica
B. CO
C. C
D. Lime stone

# Calcination and roasting are carried out in:
A. Blast furnace
B. Muffle furnace
C. Reverberatory furnace
D. Open hearth furnace

# Purification of aluminium by electrolytic process is known as:
A. Hoope's process
B. Serpeck's process
C. Hall's process
D. Bayer's process

# Which of the following metals protects itself by forming its oxide on the surface?
A. Al
B. Si
C. Fe
D. Au

# A mixture of Al(OH)3 and Fe(OH)3 can be separated by:
A. HCl
B. NH4OH
C. NaOH
D. HNO3

# The most abundant metal on the surface of the earth is:
A. Fe
B. Al
C. Ca
D. Hg

# Silver containing lead as an impurity is removed by:
A. Poling
B. Cupellation
C. Lavigation
D. Distillation