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Chemistry General Science Test Easy Mode MCQs With Answers
Question # 1
Tyndall effect is due to:
Choose an answer
block of beam of light
non - scattering of beam of light
scattering of beam of light
passing through beam of light
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Question # 2
D-block consists of:
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4th,5th & 6th periods
2nd, 3rd & 4th periods
1st, 2nd, & 3rd periods
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Question # 3
The vapour pressure of a liquid increase with the:
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increase pressure
increase of temperature
increase of intermolecular forces
increase of polarity of molecules
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Question # 4
The atomic number of potassium is:
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11
15
18
19
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Question # 5
4th & 5th consist of ________________ elements.
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8
18
32
infinite
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Question # 6
Every system in the universe tends to lower its energy to attain ________________
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Freedom
Flow
Stability
Nil
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Question # 7
biology bis classified as ___________ science.
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Engineering
Physical
Natural
Chemical
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Question # 8
The absolute zero means:
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273.15 °C
-273.15 °C
0 °C
-373.15 °C
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Question # 9
It is heterogeneous mixture
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Sand
Milk
Air
Brass
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Question # 10
Long form of periodic Table is constructed the basis of:
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Mendeleev postulate
atomic number
atomic mass
mass number
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Question # 11
One mole of sodium = ______ .
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24 g
25 g
26 g
23 g
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Question # 12
Chemical formula of chloroform is :
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CH
2
Cl
2
CH
3
Cl
CHCl
3
CCl
4
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Question # 13
Who put forward '' the vital force theory''?
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Kolbe
Wohler
Berzellius
Jabir - Bin - Hayan
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Question # 14
Who was prepared acetic acid in laboratory?
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Berzelius
Wohler
Kolbe
Dalton
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Question # 15
Oils and fats are esters of large chain fatty acids with.
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Glycogen
Glucose
Starch
Glycerol
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Question # 16
Which one of the following is Lewis base?
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NH
3
BF
3
H
+
AlCl
3
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Question # 17
Which one is the simplest sugar which can not be hydrolyzed?
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Glucose
Sucrose
Starch
Cellulose
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Question # 18
Dilute acids react with carbonates to produce the given products except.
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Salt
Water
Hydrogen
Carbon dioxide
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Question # 19
Which of the following statement s is not true about fossil fuels?
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they all contain carbon
They are renewable
they produce pollutants when burnt
they cause acid rain
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Question # 20
If an organic compound has 4 carbon atoms, all singly bonded, it will have the following characteristics except one.
Choose an answer
It will be saturated hydrocarbon
It will hav 8 hydrogen atoms
Its name will be n-butane.
It will be least reactive.
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Question # 21
Temporary hardness of water is removed by adding.
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Ca(OH)
2
NaOH
KOH
CaSO
4
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Question # 22
Which one of the following is testeless?
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Sucrose
Glucose
Fructose
Starch
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Question # 23
Which bond has more ionic characters in it.
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C - F
N - F
O - F
F - F
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Question # 24
If fluted fitter paper, rate of filtration increases as compared tot he cone shaped filter paper because.
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It has greater number of holes in it.
It has greater surface are of filtration
Fluted filter paper has greater pore sizes than cone shaped filter paper.
Thickness of paper is more than cone shaped filter paper
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Question # 25
Paalladium has isotopes.
Choose an answer
6
7
8
9
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Question # 26
In which compound oxidation state of chlorine is +5
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NaCl
HOCl
NaClO3
NaClO2
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Question # 27
The polarizabilities of elements mostly increase down the group due to the reason that
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The atomic numbers increase
Number of protons increase
Number of shells increase along, with increase of shielding effect
The behavior of the elements remain the same
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Question # 28
Alkali and alkaline earth metal are usually obtained by
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Decomposition of their carbonates
By heating their hydroxide
electrolysis of molten metal oxides
Electrolysis of molten metal halides
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Question # 29
The rate of reaction
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Increase as the reaction proceeds
Decreases as the reaction proceeds
Remains the same as the reactions proceeds
May decrease or increase as the reaction proceeds
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Question # 30
A type of meals are usually used as catalyst.
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Coinage metal
Alkali metals
Transition metals
alkaline earth metals
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Question # 31
CO+ is an example of.
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Free radical
Cationic molecular ion
Anionic molecular ion
Stable molecule
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Question # 32
Which one of the following inter molecular forces are present in neon gas molecules.
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Hydrogen bond
dipole -Dipole attraction
London dispersion force
Hydrogen bonding and London dispersion force
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Question # 33
The concept of distribution of velocities among the gas molecules was given by.
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Clausius
Mexwell
Boltzmann
Vander waal
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Question # 34
Which one does not belong to the alkaline earth metals
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Be
Ba
Ra
Rn
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Question # 35
During manufacturing of cement , the temperature of pre heating zone is.
Choose an answer
500
o
C
900
o
C
1000
o
C
1500
o
C
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Question # 36
Which of the following are mono-saccharides
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Fructose
Sucrose
Stach
Cellulose
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Question # 37
Which one of the following is not an alkali metal.
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Francium
Cesium
Rubidium
Radium
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Question # 38
Elements of Groups IIA are called
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Alkali metals
Alkaline earth metals
Coinage metals
Halogens
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Question # 39
Which one of the following elements has the largest second ionization energy.
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O
Na
F
Ne
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Question # 40
Which one of the following is not amino acid.
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Alanine
Glycine
Aspartic acid
Aniline
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Question # 41
Which carbohydrate can be used for silvering of mirror.
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Glucose
Fructose
Maltose
All
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Question # 42
The isomers always have same
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Chemical properties
Structural formula
Molecular formula
Physical properties as well as chemical properties
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Question # 43
Ethanol can be converted into ethanoic acid by
Choose an answer
Hydrogenation
Hydration
Oxidation
Fermentation
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Question # 44
The percentage of nitrogen in urea is.
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36%
46%
56%
65%
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