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Chemistry General Science Test Easy Mode MCQs With Answers
Question # 1
Which one of the following is heterogeneous mixture?
Choose an answer
milk
ink
milk of magnesia
sugar solution
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Question # 2
Cu + 2AgNO3 -------> Cu(NO3) +2Ag. In this reaction reducing agent is:
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Cu
AgNO3
Cu(NO3)2
Ag
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Question # 3
The component of solution in larger amount is .
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Solute
Solvent
A & B
nIL
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Question # 4
The earth is made up of ____________ % of aluminum.
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6
7
8
9
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Question # 5
The isotopes C-12 is present in abundance of:
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96.6%
97.6%
99.7%
None of these
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Question # 6
It is heterogeneous mixture
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Sand
Milk
Air
Brass
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Question # 7
O3, Ozone is _________ molecules.
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Homoatomic
Hetroatomic
Monoatomic
Nil
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Question # 8
Which one is largest?
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Exo
Peta
Atto
Pico
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Question # 9
A binary solution consists of:
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One component
Two components
Three components
Many components
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Question # 10
Intermolecular forces are ____________ than chemical bonds.
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Stronger
Weaker
Wqual
Nil
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Question # 11
Bucky balls are ____________ allotropic forms of carbon.
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1st
2nd
3rd
4th
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Question # 12
Composition of carbon in kerosene oil is.
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C
10
-C
12
C
12
-C
12
C
16
-C
18
C
30
-C
30
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Question # 13
Indicators are the
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Inorganic compounds
Organic compounds
Ionic compounds
Covalent compounds
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Question # 14
Which gas protects the Earth's surface from ultraviolet radiations?
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CO
2
CO
N
2
O
3
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Question # 15
Which is the main component of natrual gas.
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Methane
Ethane
Propane
Charcoal
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Question # 16
Which of the following gas is used in warfare?
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Methane
Ethane gas
Mustard gas
None of these
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Question # 17
Which protect our muscles from cramping?
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Carbohydrats
Vitamins
Lipids
Proteins
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Question # 18
The forward reaction takes place:
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Right to left
Left to Right
Only to right
Only to left
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Question # 19
Which one is not the fraction of residual oil?
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Paraffin wax
Asphalt
Fuel oil
Coke
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Question # 20
How many atmospheric temperature increase every year due to accumulation of CO
2
in air.
Choose an answer
0.03
o
C
0.05
o
C
1
o
C
2
o
C
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Question # 21
The % age of carbon in coke is
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60
70
90
98
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Question # 22
The impurities associated with the minerals are known as:
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Metallurgy
Ores
Gangue
Compounds
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Question # 23
Which one of the following enthalpies is always an exothermic process.
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Enthalpy of atomization
Enthalpy of neutralization
Enthalpy of ionization
Enthalpy of dissociation
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Question # 24
An atomic orbital has l =1 , m =+1, 0, -1, n = 3 than which one of the following atomic orbital has such values.
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2s
2p
3p
3d
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Question # 25
The rate of reaction
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Increases as the reaction proceeds
Decreases as the reaction proceeds
Remains the same as the reaction proceeds
May decrease or increase as the reaction proceeds
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Question # 26
Conduction of electricity through gases under reduced pressure is due to the transportation of.
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positive charge
Negative charge
Both types of charges
None of these
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Question # 27
Several types of filter media are used for filtration depending on
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Natural of reactants
Nature of reaction
Size of precipitate
Nature of filter paper
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Question # 28
In paper chromatograghy the point at which the solvent rises to maximum extent is called
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Event
Chromatogram
Solvent front
Base line
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Question # 29
Which of the hydrogen halide has the highest percentage of ionic character.
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HCl
HBr
HF
HI
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Question # 30
Stoichiometric calculations cannot applied to reversible reactions because.
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Product again changes to reactant
Less product is formed
Reaction goes only in one direction
Products do not disappear.
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Question # 31
Bromine has isotopes
Choose an answer
2
4
8
6
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Question # 32
One of the following liquids has lowest vapour pressure at 32°C. Indicate that liquid
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Ether
Chloroform
Ethanol
Water
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Question # 33
Which pair of molecule have Debye forces in them
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Ar and Ar
Argon and water
Na+ ions and water
water and water
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Question # 34
Bleaching powder contains available chlorine approximately
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100%
70-80%
35-40%
10-20%
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Question # 35
In aqua regia, the ratio of conc. HCl to Conc. HNO3 is
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1 : 1
2 :1
1:2
3 : 1
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Question # 36
Typical transition element is
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Sc
CO
Ra
Y
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Question # 37
Vegetable oils are
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Polyesters
Glycerides of unsaturated fatty acids
Essential oils
Fatty acids
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Question # 38
Paraldehyde is polymer of.
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HCHO
CH3CHO
CH3COCH3
CH3CH2-CH2OH
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Question # 39
Chile saltpeter has the chemical formula
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NaNO3
KNO3
Na2B4O7
Na2CO3.H2O
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Question # 40
Which has greater hydration energy.
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Li+
Na+
K+
Mg+2
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Question # 41
Colour of which halogen is not correctly related.
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F2 --- colourless gas
Cl2---- greenish yellow gas
Br2----- Reddish brown liquid
I2-------- grayish Black solid
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Question # 42
An atom or group of atoms, which confers characteristic properties to organic compounds, are called.
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Isomerism
Metamerism
Ligands
Functional groups
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Question # 43
All of the following tests are used to identify aldehydes except.
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Tollen's test
Fehling test
Baeyer's test
Benedict test
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Question # 44
Which halogen occurs naturally in a positive oxidation state.
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Fluorine
Chlorine
Bromine
Iodine
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