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Chemistry General Science Test Easy Mode MCQs With Answers
Question # 1
Which branch of chemistry deals with the study of stars, planets, comets and interstellar space.
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Physical chemistry
Medcinal chemistry
Astrochemistry
Geochemistry
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Question # 2
All Acids turn blue litmus.
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Pink
White
Colourless
Red
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Question # 3
The amoutn of energy given out when an electron is added to an eatom is called.
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Electron affinity
Lattice energy
Ionization energy
Electronegativity
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Question # 4
A compound with chemicla formula Na
2
CX
3
has formula mass 106 ami. Atomicmass of the elemetn X is.
Choose an answer
16
23
12
106
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Question # 5
13
C and
14
C are both present in nature.
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0,1 %
1.1 %
0.9 %
1.5 %
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Question # 6
Which of the following statement is not correct about isotopes.
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they have same atomic number
They have same number of protons
They have same physical properties
They have same chemical propeties
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Question # 7
Which of the following cannot be classified as Arrhenius acid
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CO2
HNO3
H2CO3
H2SO4
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Question # 8
Covalent Bond involves the
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Sharing of electrons
Repulsion of electrons
Acceptance of electrons
Donation of electrons
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Question # 9
Pure alkalis metals can be cut siply by knife but iron cannot bccause of alkali meals have
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Non metalic bonding
Strong metallic bonding
Weak metallic bonding
Moderate metqllic bonding
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Question # 10
The atomic radii of the elemtns in periodic table.
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Increase from left to right in a period
Do not chage from left to right in a period
Increase from top to bottom in a group
Decrease from top to bottom in a group
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Question # 11
17th Group of elements contain electrons in their outer most shell
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4
5
7
6
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Question # 12
In smelting process a small amount of coke is required because:
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it is highly endothermic process
it is highly exothermic process
it is very fast process
it is very slow process
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Question # 13
Dynamic means, reaction is:
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In forward direction
Stop
In reverse direction
Still continuing.
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Question # 14
Which acid used for food preservation?
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H
2
SO
4
HNO
3
HCl
CH
3
COOH
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Question # 15
How many % age of nitrogen in urea fertilizers?
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40.6
45.6
46.6
50
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Question # 16
Temporary hardness of water is removed by adding.
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Ca(OH)
2
NaOH
KOH
CaSO
4
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Question # 17
Such reationsin which reactants and products are sufficient in quantities the Kc value of equilibrium state will be
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Very small
Very large
Moderate
None of these
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Question # 18
The reduction of alkyl halides takes place in the presence of
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Zn/HCl
Na/HCl
Mg/HCl
Cu/HCl
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Question # 19
Which acid is found in Ant sting?
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Citric Acid
Formic Acid
Uric Acid
Sulphuric acid
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Question # 20
In which of the following groups, oxygen is attached on both sides with carbon atoms?
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Ketone
Ether
Aldehyde
Ester
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Question # 21
Blast furnace usually used for the metallurgy of.
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Iron
Copper
Aluminum
Both a and b
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Question # 22
The end product of oxidation of acetylene is .
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Oxalic acid
Glyoxal
Glycol
None of these
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Question # 23
Which of the hydrogen halides has the highest percentage of ionic character.
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HF
HBr
HCl
HI
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Question # 24
Which one of the following has highest pH
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Distilled water
1 M NH4OH
1 M NaOH
Water saturated with chlorine gas
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Question # 25
Gas molecules show more deviation from ideal behaviour at high pressure because.
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Velocity of molecules increases
Velocity of molecules decreases
Force of attraction between molecules increases
Force of collision per unit area increases
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Question # 26
How should the conditions be changed to prevent the volume of a give gas from expanding when its mass is increased.
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Temperature is lowered and pressure is increased.
Temperature is increased and pressure is lowered
Temperature and pressure both are lowered
Temperature and pressure both are increased
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Question # 27
The octet rule in not followed in the formation of
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NF
3
CF
4
CCI
4
PCI
5
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Question # 28
Rutherford's model fo atom failed because
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The atom did not have a nucleus and electrons.
It did not account for the attraction between protons and neutrons.
It did not account for the stability of the atom
Their is actually no space between the nucleus and the electrons.
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Question # 29
The number of bonds in oxygen molecules.
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One sigma and One pi
One sigma and two Pi
Three sigma only
Two sig and two pi
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Question # 30
When HCl is added to H2S aqueous solution, Its ionization
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Decrease
Increase
Remains constant
First increases than decreases
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Question # 31
An ionic compound A
+
B
-
is most likely to be formed when
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The ionization energy of A is high and electron affinity of B is low
The ionization energy of A is low and electron affinity of B is high
Both the ionization energy of A and electron affinity of B are high
Both the ionization energy of A and electron affinity of B are low
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Question # 32
A single lead cell provides volts
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2
4
6
8
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Question # 33
During the electrolysis of molten NaCI, the ion which is reduce is
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Question # 34
Which process is used to convert vegetable oil to vegetable ghee.
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Hydrolysis
Oxidation
Esterification
Hydrogenation
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Question # 35
Which makes a molecule more stable.
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Greater localization of pi electrons
Less delocalization of pi electrons
Greeter delocalization of pi electrons
Less delocalization for pi electrons
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Question # 36
Which of the following gives acidic oxide
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N
As
Sb
Bi
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Question # 37
Which substance is used to convert ethanol to ethyl chloride
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SOCl2
PCl3
PCl5
All of these
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Question # 38
Which of the following acid can be used as a catalyst in Friedel Craft's reactions
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AlCl
3
HNO
3
BeCl
2
NaCl
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Question # 39
Methyl alcohol can be distinguished from ethyl alcohol by
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Action of Cl2
Action of NH3
Dissolving in H2O
NaOH +I2
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Question # 40
The minimum temperature of troposphere is.
Choose an answer
-2
o
C
-56
o
C
-100
o
C
15
o
C
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Question # 41
Preparation of vegetable ghee involves.
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Halogenation
Hydrogenation
Hydroxylation
Dehydrogenation
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Question # 42
Amongst the following, the compound that can be most readily sulphonated is
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toluene
benzene
nitrobenzene
chlorobenzene
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Question # 43
Which of the following is an addition polymer
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Polyester
Polystyrene
Nylon 6,6
Terylene
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Question # 44
Which products is not formed when ethyl alcohol reacts with SOCl2 in the presence of pyridine.
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Ethyl chloride
Hydrogen chloride
Sulphur di oxide
Sulphur tri oxide
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