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Chemistry Class 10 Chapter 16 - Chemical Industries - 1
1.
Haematite is the ore of?
Lead
Copper
Iron
Sodium
2.
Fe
3
O
4
is the formula of?
Haematite
Magnesite
Halite
Bauxite
3.
Chalcopyrite is the ore of?
Zinc
Iron
Copper
Aluminium
4.
Which one of the following is an ore of iron?
Chromite
Magnesite
Cinnabar
Galena
5.
The formula of haematite is?
Nacl
Fe
3
o
4
Fe
2
O
3
Pbs
6.
Bauxite is the ore of?
Zinc
Iron
Aluminium
Lead
7.
Which one of the following is the ore of sodium?
Galena
Chromite
Halite
Silica
8.
Pbs is the formula of?
Cassiterite
Chromite
Galena
Halite
9.
The formula of silica is?
SI O
4
SN O
2
SI O
2
ZNS
10.
Cinnabar is the ore of?
Chromium
Silicon
Mercury
Tin
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