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Chemistry General Science Test Easy Mode MCQs With Answers
Question # 1
Which one metal can be cut with a knife?
Choose an answer
Na
Mg
AI
Ca
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Question # 2
Which one is moderate reactive metal?
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Pb
Na
Ca
Mg
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Question # 3
________________ in linear in shape.
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CO+
CO2
H2O
NH3
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Question # 4
An ion is a charged particles:
Choose an answer
True
False
In some conditions
Never
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Question # 5
The no. of periods in modern periodic table are
Choose an answer
7
11
18
23
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Question # 6
Fog is an example of ____________ in gas.
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Solid
Liquid
Gas
Plasma
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Question # 7
When temperature of water drops to ____________ °C it convert onto ice.
Choose an answer
0
-2
-1
1
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Question # 8
Hydrogen has ________________ isotopes.
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1
2
3
4
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Question # 9
Formation of water form hydrogen and oxygen is:
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Redox reaction
Acid-base reaction
Neutralization
Decomposition
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Question # 10
Which is used for industrial manufacture of NaCI?
Choose an answer
Daniel cell
Down's cell
Nelson's cell
None of these
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Question # 11
The number of proton in an atom is called _________ number.
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Molecule
Formula
Atomic
Molar
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Question # 12
Which is the natural sugar found in starchy food.
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Pentose
Dextrose
Hexose
All of them
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Question # 13
Carbonization process is the conversion of
Choose an answer
Coal into coal gas
Coal into wood
Wood into coal
Wood into coal tar
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Question # 14
A hydrocarbon has molecular formula C
8
H
14
. What is the molecular formula of the next number of the same homologous series.
Choose an answer
C
9
H
18
C
9
H
16
C
9
H
20
C
9
H
12
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Question # 15
The percentage of SO
2
released by the combustion of coal and petroleum product.
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40%
60%
70%
80%
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Question # 16
Which of the following is a poisonous gas.
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Oxygen
Ozone
Nitrogen
Carbon dioxide
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Question # 17
Water which produces good lather with soap is called.
Choose an answer
Soft water
Hard water
Heavy water
All of them
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Question # 18
In the bacterial decay, the compound of which element are emitted.
Choose an answer
Sulphur
Carbon
Nitrogen
All of them
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Question # 19
Photosynthesis process produces.
Choose an answer
Starch
Cellulose
Sucrose
Glucose
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Question # 20
Alkanes are least reactive compounds because they are.
Choose an answer
Saturated hydrocarbons.
Unsaturated hydrocarbons.
Both a and b
None of the above.
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Question # 21
Grease stains from clothes are removed by sing.
Choose an answer
Ammonium nitrate
Aluminium hydroxide
Ammonium hydroxide
Aluminum chloride
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Question # 22
Uric acid is found in
Choose an answer
Urine
Fats
Apple
Grapes
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Question # 23
The lightest value of lattice energy is for which one of these ionic compounds.
Choose an answer
NaI
NaF
NaBr
NaCl
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Question # 24
Which of the hydrogen halides has the highest percentage of ionic character.
Choose an answer
HF
HBr
HCl
HI
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Question # 25
Which of the following species has unpaired electrons in anti-bonding molecular orbitals
Choose an answer
O
2
+2
N
2
-2
B
2
F
2
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Question # 26
The electron in a subshell is filled according to formula.
Choose an answer
2n
2
2(2l+1)
(2l+1)
None of these
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Question # 27
In which , case particles are separated from each other.
Choose an answer
Fusion
Condensation
Neutralizations
Vaporization
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Question # 28
Which statement about Gooch crucible is incorrect.
Choose an answer
It is made up of porcelain
Quick filtration occur by using suction filtering apparatus
All the chemicals which reacts with paper can be filtered.
Filter medium used in this crucible consists many folds of filter paper only.
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Question # 29
pKa of CH3COOH is 4.74. The pKb value of CH3COO- ions will be
Choose an answer
7
14
9.26
zero
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Question # 30
Which process is endothermic and spontaneous
Choose an answer
Neutralization of NaOH with HCl
Formation of NH3 from H2 and N2
Formation of H2O from H2 and O2
Evaporation of sea water
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Question # 31
One of the following statements about Born-Haber cycle is correct. Which is that statement
Choose an answer
Born-Haber cycle is different from Hess's law
The energy change in a cyclic process is not zero
The lattice energy of the crystalline substances can be calculated easily
Heat of formation of the product and the lattice energy of the substance can be calculated simultaneously
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Question # 32
The value of pH and P
oH
of pure water at 25° C is
Choose an answer
14
7
1 x 10
-14
1 x 10
14
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Question # 33
When a reaction proceeds in a sequence of steps, the overall rate is determined by
Choose an answer
Fastest step
Slowest step
Order of different steps
Molecularity of all steps
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Question # 34
Which one of the following gases is used in welding purpose usually
Choose an answer
Methane
Ethane
Ethene
Acetylene
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Question # 35
A snake was preserved in a solution and was placed in biology laboratory. The solution is.
Choose an answer
De ionized water
Fehling solution
Formalin
Chloroform
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Question # 36
The news paper can be recycled again and again as many times as
Choose an answer
5
3
4
2
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Question # 37
Half mass of atmosphere gases is present in.
Choose an answer
5-6 km distance above the surface of earth
10 km above the surface
100 km above the surface
56 km above the surface
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Question # 38
Which is not a calcarious material
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Clay
Limestone
Marble
Chalk
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Question # 39
The oxide of beryllium is
Choose an answer
Acidic
Basic
Amphoteric
None of these
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Question # 40
Which is more basic
Choose an answer
RbOH
NaOH
KOH
Li OH
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Question # 41
The composition mixture of clay and lime stone in the raw material.
Choose an answer
75% lime stone and 25% clay
25% lime stone and 75% clay
15% lime stone and 55% clay
55% lime stone and 15% clay
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Question # 42
Which group when attached with benzene increases electron density of ring.
Choose an answer
-COOH
-NO
-CHO
-CH3
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Question # 43
Which one of halogens is a liquid
Choose an answer
F
2
Cl
2
Br
2
I
2
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Question # 44
Aluminium does not corrode because.
Choose an answer
It is a semi metal
It is a silver shining metal
It does not react with O2
It forms a protective layer of Al2O3
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