Important
GK Questions from Science (Chemistry) for SSC CGL Exam Set 14:
The List
of Important GK questions from general science were given here, Candidates
those who are preparing for the SSC CGL Exam can use this material. We also
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Materials.
1).Cryolite is the combined ore of _________.
a)
Aluminium and copper
b)
Aluminium and sodium
c)
Aluminium and lead
d)
Aluminium and zinc
2).When bauxite is fused with caustic soda, it
forms _________.
a)
Alumina
b)
Sodium meta aluminate
c)
Cryolite
d)
Corundum
3).The chief ore of copper is _________.
a)
Copper pyrite
b)
Cryolite
c)
Haematite
d)
Magnetite
4).Copper pyrite is purified by _________.
a)
Gravity separation
b)
Forth floatation
c)
Electromagnetic separation
d)
Oxidation
5).During roasting of copper pyrite,
__________ is formed.
a)
Cu2S
b)
FeSO4
c)
CuSO4
d)
SO3
6).Matte is _______.
a)
Cu2S
b)
FeS
c)
Cu2S + FeS
d)
CuFeS2
7).Number of groups in modern periodic tablet
is _________.
a)
7
b)
17
c)
18
d)
8
8).An amalgam is an alloy of metal with
_________.
a)
Carbon
b)
Mercury
c)
Hydrogen
d)
Gold
9).Any metal mixed with mercury is called
amalgam. The amalgam used for dental filling is _________.
a)
Ag-Sn amalgam
b)
Cu-Sn amalgam
c)
Either A or B
d)
None of these
10).Metals presents in brass are __________.
a)
Zn, Cu
b)
Cu, Fe
c)
Fe, Al
d)
Al, Cu
Answers:
1). b) 2). b) 3). a) 4). b) 5).
a) 6). c) 7).
c) 8). b) 9).
a) 10). a)
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