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Online Tests
Chemistry General Science Test Easy Mode MCQs With Answers
Question # 1
Potassium's atomic no. is :
Choose an answer
17
18
19
20
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Question # 2
The core of the earth is mostly made from ____________
Choose an answer
Nickel
Iron
A % B
Copper
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Question # 3
Carbon forms ____________ bonds in diamonds.
Choose an answer
4
3
6
9
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Question # 4
The value of Planck's constant is
Choose an answer
6.63 x 10-34 Js
6.63 x 10-32 Js
6.63 x 10-30 Js
6.63 x 10-28 Js
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Question # 5
The maximum no.of electrons that can be accommodated in M shell are
Choose an answer
2
8
18
32
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Question # 6
Following are elements of 2nd period.Which atom is bigger in size?
Choose an answer
Li
Be
B
C
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Question # 7
Na__ Na++ e , what type of ionit is :
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Positive
Negative
Neutral
Charged
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Question # 8
Neuron was discovered by
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Sir Willium Crooks
Goldstein
James Chadwik
Neil Bohr
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Question # 9
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 # 10
It is heterogeneous mixture
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Sand
Milk
Air
Brass
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Question # 11
Which one of the following shell consists of three subshells?
Choose an answer
K- shell
M-Shell
L-shell
M-shell
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Question # 12
Number of discovered element till today are.
Choose an answer
140
118
90
16
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Question # 13
Which compound protect teeth from diseases?
Choose an answer
Fluorine compound
Chlorine compound
Iodine compound
Bromine compound
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Question # 14
Sodium zeolite is naturally occurring reason of .
Choose an answer
NaAl (SiO
3
)
2
Na
2
CO
3
CaCO
3
Na
2
SIO
3
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Question # 15
Which gas is not present in atmosphere?
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Nitrogen
Oxygen
Helium
Carbon dioxide
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Question # 16
Jabir Bin Haiyan prepared.
Choose an answer
Nitric Acid
Hydrochloric acid
Sulphueric Acid
All of these
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Question # 17
Which of the following is reducing sugar?
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Glucose
Maltose
Sucrose
Starch
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Question # 18
The colour of litmus in a strong basic solution become.
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Yellow
Blue
Red
Colourless
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Question # 19
If Qc > Kc the reaction will be in
Choose an answer
Chemical equilibrium
Static equilibrium
Reverse reaction
Forward reaction
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Question # 20
Acidic solutions have pH value.
Choose an answer
Less than 7
Greater than 7
equal to 7
None of these
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Question # 21
Formula of acetaldehyde is:
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Question # 22
Molecular formula of stearic acid is.
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C
15
H
31
COOH
C
12
H
15
COOH
C
15
H
30
COOH
C
17
H
34
COOH
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Question # 23
When 5d orbital is completed them entering electron goes into.
Choose an answer
6s
6p
6d
6f
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Question # 24
More ideal gas at room temperature is.
Choose an answer
CO2
NH3
SO2
N2
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Question # 25
Suppose a new element 'J' has discovered and has seven electron in the valence shell. Which statement about this element would be correct.
Choose an answer
It is monatomic
It form covalent bond with hydrogen
It forms stable positive ion
It forms covalent bond with group IA element
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Question # 26
In H2SO4the oxidation number of 'S' is
Choose an answer
+2
+6
+8
+4
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Question # 27
Tin has Isotopes
Choose an answer
7
9
11
5
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Question # 28
Amorphous solids.
Choose an answer
Have sharp melting points.
Undergo clean cleavage when cut with knife
Have perfect arrangement of atoms
Can possesses small regions of orderly arrangement of atoms.
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Question # 29
The net change in a chemical reaction is same whether it takes place directly or indirectly is
Choose an answer
Henry's law
Charles's
Hess's lass
Graham's law
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Question # 30
Which of the following compound has the highest % o f oxygen by weight
Choose an answer
CH
3
- OH
C
2
H
5
OH
HCOOH
H
2
O
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Question # 31
Rate of diffusion of CO and N
2
are same at room temperature due to the reason, that
Choose an answer
Both are diatomic molecules
Both have same multiple bond in them
Both have lone pairs in them
Both have same molar masses
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Question # 32
Diamond is bad conductor because.
Choose an answer
It has a tight structure
It has a high density
It is transparent to light
There are o free electros present in the crystal of diamond to conduct electricity.
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Question # 33
Which of the following solution s has the highest boiling point.
Choose an answer
5.85% solution of sodium chloride
18.0 % solution of glucose
6.0% solution of urea
All have the same boiling point
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Question # 34
Ammonium nitrate fertilizers is not used for which crop
Choose an answer
Cotton
Wheat
Sugar cane
Paddy rice
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Question # 35
Ethanol can be converted into ethanoic acid by
Choose an answer
Hydrogenation
Hydration
Oxidation
Fermentation
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Question # 36
Elimination Bimolecular reactions involve
Choose an answer
Second order kinetics
First order kinetics
Third order kinetics
Zero order kinetics
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Question # 37
Bleaching powder may be produced by passing chlorine over.
Choose an answer
Calcium carbonate
Hydrated calcium sulphate
Anhydrous calcium sulphate
Calcium hydroxide
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Question # 38
Ammonia is prepared industrially by
Choose an answer
Contact process
Ostwald process
Birkland Eyed process
Heber process
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Question # 39
Kaolin is a mineral of
Choose an answer
Carbon
Magnesium
Silicon
Aluminium
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Question # 40
NO2 can be obtained by heating.
Choose an answer
NaNO3
KNO3
Pb(NO3)2
NH3NO3
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Question # 41
Corundum is
Choose an answer
Al2O3
Na2AlF6
Quartz
Calcium
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Question # 42
Which condition are not suitable for the growth of enzymes.
Choose an answer
Temperature between 25
o
C to 37
o
C
Solution must be dilute
Environment must be aerated
Some preservative should be present in solution
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Question # 43
Which is not a calcarious material.
Choose an answer
Lime
Clay
Marble
Marine shell
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Question # 44
Which hydroxide decomposes on heating.
Choose an answer
LiOH
NaOH
KOH
CaOH
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