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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Which element exists as discrete small molecules in the solids state
Choose an answer
Aluminum
Silicon
Iodine
Sodium
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Question # 2
The other name for cross linked polymers is
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Linear polymer
Branched polymers
Inter connected polymers
None of these
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Question # 3
Carboxylic acids can be prepared from:
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Oxidation of alkane
Oxidation of alcohols
Oxidation of aldehydes
All of these
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Question # 4
If absolute temperature of a gas is doubled and the pressure is reduced to one half, the volume of the gas will
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remain unchanged
increase four times
reduce to 1/4
be doubled
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Question # 5
Which pair of elements will have the same type of bonds between their atoms in the solid state?
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carbon and calcium
lithium and boron
aluminium and phosphorus
nitrogen and carbon
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Question # 6
Born-Haber cycle is an application of
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Hess's law
1" law of thermodynamics
Avogadro's law
1law of thermochemistry
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Question # 7
In van der Waal's equation of state of the gas law,the constant 'b' is measure of
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Intermolecular repulsions
Intermolecular collisions per unit volume
Volume occupied by the molecules
Intermolecular attraction
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Question # 8
Unit of ozone is?
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Debye
Dobson
Esu
Coulumb
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Question # 9
Substance which is formed as well as consumed during a chemical reaction and have temporary existence.
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Reactant
product
Catalyst
Intermediate
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Question # 10
A single free chlorine redical can destroy ozone molecules upto:
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100000
100
1000
10000
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Question # 11
A molecule of polysacharide on hydrolysis produces __________of molecules of monosacharide,
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2 - 10
3
>10
2
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Question # 12
Glucose in the presence of zymase is converted into
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Alcohol
Acid
Ethyl alcohol
Ketone
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Question # 13
Molecular orbitals are filled with the available:
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Hund's of rule.
Pauli's exclusion principle.
Aufbau principle.
All of above.
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Question # 14
Monosaccharides belong to the group
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Lipids
Fats
Proteins
Carbohydrates
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Question # 15
Which of the following statement is correct for a chemical reaction to occur molecules of substances must
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Collide with each other
Collide with energy more than activation energy
Collide with energy less than activation energy
Collide with high frequency
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Question # 16
Which of the following is not fatty acid?
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Propanoic acid
Acetic acid
Phthalic acid
Butanoic acid
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Question # 17
Which of the following equations represents the action of heat on NaHCO
3
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Question # 18
The electron in an atom
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moves randomly around the nucleus
has fixed space around the nucleus
is stationary in various energy levels
moves around its nucleus in definite energy levels
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Question # 19
Which of the following has highest first ionization potential?
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Carbon
Oxygen
Nitrogen
Boron
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Question # 20
The pressure of vapours when sent to the ionization chamber in mass spectrometer is
Choose an answer
10
-5
to 10
-6
torr
10
-6
to 10
-7
torr
10
-7
to 10
-8
torr
10
-3
to 10
-4
torr
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Question # 21
Factors affecting denaturation of proteins:
Choose an answer
Change in temp and pH
Strong reducing agent
Strong oxidizing agent
All of these
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Question # 22
Subsidiary quantum number specifies
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size of orbital
shape of orbital
orientations of orbitals
Nuclear stability
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