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Chemistry General Science Test Easy Mode MCQs With Answers
Question # 1
The no.of electrons in the valence shell of noble gases is
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1
6
7
8
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Question # 2
A heterogeneous mixture of different substance are called:
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Solution
Suspension
Colloids
Nil
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Question # 3
It is an ionic compound
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H2O
NaCI
CH4
HF
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Question # 4
CO2 the oxidation number of C =.
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+1
+2
+3
+4
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Question # 5
____________ Is drawn in wires.
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Gold
Silver
Helium
Nil
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Question # 6
In isotopes numbers of ________________ is same.
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Protons
Electrons
Neutrons
Mass number
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Question # 7
Which is used for industrial manufacture of NaCI?
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Daniel cell
Down's cell
Nelson's cell
None of these
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Question # 8
Electropositive character depends upon:
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Atomic size
Nuclear charge
Ionization energy
Electron affinity
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Question # 9
____________ solids are arranged in 3 dimension.
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Crystalline
Amorphous
Both
None
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Question # 10
Which one of the following will not react with dilute HCI?
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Sodium
Potassium
Calcium
Carbon
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Question # 11
How many time liquids are denser than gases?
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100 times
1000 times
10,000 times
100,000 times
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Question # 12
General formula of alkynes is:
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C
n
H
n
C
n
H
2n
C
n
H
2n+2
C
n
H
2n-2
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Question # 13
Which one Ion is not present in salt.
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Metallic cation
Anion of Base
Anion of acid
None metallic anion
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Question # 14
Example of complex salt is.
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Zinc sulphate
Potash alum
Potassium ferrocynide
Sodium Phosphate
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Question # 15
Deficiency of Vitamin E causes.
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rickets
Scurvy
Anemia in babies
Night blindness.
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Question # 16
At equilibrium state, when reaction cases to proceed, it is called:
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equilibrium constant
dynamic equilibrium
static equilibrium
simple equilibrium
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Question # 17
Alkanes are also called:
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olefins
Paraffins
aliphatic compound
cyclic compounds
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Question # 18
Grease stains from clothes are removed by sing.
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Ammonium nitrate
Aluminium hydroxide
Ammonium hydroxide
Aluminum chloride
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Question # 19
Normaily rain water is weakly acidic because.
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SO
3
CO
2
CO
3
NO
2
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Question # 20
Methyl butanoate smell like.
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Apple
Mange
Lemon
Grapes
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Question # 21
The two major components of atmosphere are:
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Hydrogen and oxygen
Nitrogen and Hydrogen
Nitrogen and oxygen
Oxygen and water.
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Question # 22
Which one of the ore of copper?
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Copper glance
Chalcopyrite
Both a and b
None of these
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Question # 23
Which substances has diffused melting point.
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Crystalline solids
Amorphous solids
Metallic solids
Covalent solids
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Question # 24
Gases exert pressure on the walls of the container becasue the gas molecules.
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Collide with each other
Collide with walls of container
Have definite volume
Obey the gas laws
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Question # 25
The S.I. units for the molar heat capacity are
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Joule Cm
-3
degree
-1
Joule deg
-1
atm
-1
Joule deg
-1
mol
-1
Joule deg
-1
kg
-1
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Question # 26
Which electron traveled more distance, when jump from
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n1 to n2
n2 ato n3
n3 to n2
n3 to n4
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Question # 27
The Rutherford experiment of using a stream of alpha particles on a piece of gold foil proved that.
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The atom was a solid sphere
The atom had electron
The atom had neutrons
The atom had a great empty space in it
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Question # 28
The paramagnetic behaviour of oxygen is well explaned on the basis of.
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M.O Theory
N.B Theory
VSEPR Theory
CF theory
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Question # 29
The pressure of oxygen inside the bomb calorimeter is.
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100 atm
50 atm
25 atm
20 atm
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Question # 30
Which statement is incorrect about Dempster's mass spectrometer.
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Solid sample can be used in this mass spectrometer
Ions are detected on the basis of mass to charge ratio
Atoms or molecules are ionized with beam of electron.
This spectrometer work at one atmospheric pressure.
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Question # 31
As compared to pure atomic orbitals the hybrid orbitals have.
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Low energy
High energy
Same energy
None of these
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Question # 32
Two solution of NaCI and KCI are prepared separately by dissolving same moles of them in the fixed amount of solvent. Which of the following statements is true for these solution
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KCI solution will have higher boiling point than NaCI solution
Both the solutions have different boiling point
KCI and NaCI solution possess same vapour pressure
KCI solution possesses lower freezing point than NaCI solution
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Question # 33
Dipole moment of CO2 is.
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1.25 D
1.85 D
3.1 D
Zero
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Question # 34
Which property of hydrogen not resemble to alkali metals.
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Electronic configuration
Oxidation state
Reaction with halogen
Metallic nature
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Question # 35
Which is the strongest acid
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HCIO
HCIO
2
HCIO
3
HCIO
4
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Question # 36
The state of hybridization of carbon atom in Ethyne
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sp
sp
2
dsp
2
sp
3
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Question # 37
Point out the element which forms super oxide
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Li
Na
K
C
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Question # 38
Which one of the following compounds of lead is red in colour
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PbO
Pb2O
Pb3O4
PbCO3
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Question # 39
Which compound is alicyclic in nature.
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Cyclobatane
Iso batane
n butane
Toluene
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Question # 40
When ethyl bromide is heated with Ag2O the product formed is.
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Ethanol
Ethene
Ethanol
Di ethyl ether
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Question # 41
The thickness of ozone layer is.
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25 to 50 km
25 to 28 km
3 km only
1 km only
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Question # 42
In Down's cell anode is made up of.
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Iron
Copper
Graphite
Platinum
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Question # 43
Which of the following gas will turn lime water milky
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Cl
2
NO
2
CO
CO
2
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Question # 44
An aldehyde is reduced to alkane with hydrazine is the presence of
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KOH
NaOH
CaO and NaOH
Ca(OH)2
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