MolSynapse
question bank
All chapters
NEET
JEE
Practice
MolSynapse
/
Question bank
/
Metallurgy
/
Roasting, calcination and reduction
NEET level
Single correct option
Difficulty 1 of 3
mt058
The correct formula of the iron ore magnetite is
A
Fe
X
3
O
X
4
B
FeCO
X
3
C
Fe
X
2
O
X
3
D
FeS
X
2
Answer: A
Magnetite is the magnetic black oxide of iron,
Fe
X
3
O
X
4
. Haematite is
Fe
X
2
O
X
3
, siderite is
FeCO
X
3
and iron pyrites is
FeS
X
2
.
Practice Metallurgy
More on Roasting, calcination and reduction
Previous question
Next question
More questions on Roasting, calcination and reduction
Roasting zinc blende, ZnS, in a plentiful supply of air gives which solid product?
NEET level
Strong heating of limestone in the absence of air, a calcination, evolves which gas?
NEET level
In the blast furnace, which substance is added to combine with silica gangue and form a fusible slag?
NEET level
Which gas is liberated when galena, PbS, is roasted in air?
NEET level
In the cooler, upper part of the blast furnace, iron oxides are mainly reduced by
NEET level
In the thermite process the metal used as the reducing agent is
NEET level