List of Important GK Questions from Science (Chemistry)
for Upcoming SSC Exam Set-7:
The List
of Important GK questions from general science were given here, Candidates
those who are preparing for the SSC Exam can use this material. We also provide
GK Questions from the topics such as, Indian Polity, History, Geography,
Science, Economic and Commerce. Follow Us Daily for More Study Materials.
1).Zn + 2HCl --------> ZnCl2 + H2 the
above reaction is an example of ________.
a)
Combination reaction
b)
Double Displacement reaction
c)
Displacement reaction
d)
Decomposition reaction
2).A reddish brown coloured element ‘X’ on
heating in air becomes a black coloured compound ‘Y’. X and Y are ______ and
________.
a)
Cu
b)
CuO / Pb
c)
PbO
d)
None of these
3).A student tested the pH of pure water using
a pH paper. It showed green colour. If a pH paper is used after adding lemon
juice into water, what colour win he observe?
a)
Green
b)
Red
c)
Yellow
d)
Blue
4).Chemical volcano is an example of
__________.
a)
Combination reaction
b)
Decomposition reaction
c)
Redox reaction
d)
Endothermic reaction
5).When crystals of Lead nitrate on heating
strongly produces __________ gas.
a)
NO2, reddish brown
b)
NO3
c)
NH4
d)
CO3
6).When aqueous solutions of Silver nitrate
and Sodium chloride are mixed ________ precipitate is immediately formed
a)
White
b)
Yellow
c)
Red
d)
Blue
7).Zinc can displace Aluminium metal from
aqueous solution of Aluminium sulphate as __________.
a)
Zinc is more reactive than
Aluminium
b)
Aluminium is more reactive than
Zinc
c)
Either A or B
d)
None of these
8).To product tooth decay, we are advised to
brush our teeth regularly. The nature of the tooth paste commonly used is
________ in nature.
a)
Basic
b)
acidic
c)
neutral
d)
strongly acidic
9).Vinegar is present in acetic acid. Curd
contains ________ acid.
a)
Lactic acid
b)
Tartaric acid
c)
Organic acid
d)
Inorganic acid
10).pH = - log10 [H+].
The pH of a solution containing hydrogen ion concentration of 0.001M solution
is __________.
a)
3
b)
11
c)
14
d)
18
Answers:
1). c) 2).
a) 3). c) 4). b) 5). a) 6). a) 7).
a) 8). a) 9). a) 10). a)
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