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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
The enzymes that bring about exchange of functional groups like phosphate are called
Choose an answer
Ligases
Lyases
Isomerases
Transferases
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Question # 2
Thrombin is locally used to stop
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Heart disease
Bleeding
Blood
None of these
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Question # 3
Plastic toys are
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Copolymer
Thermoplastic polymer
Thermosetting polymer
Homopolymer
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Question # 4
What are the conditions under which the relation between volume (V) and number of moles (n) of gas is plotted? (Pressure; T-temperature)
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constant P and T
constant P and V
constant T and V
constant n and v
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Question # 5
Reaction of alcohol with hydrogen chloride, in the presence of Zinc chloride yields
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Ketone
Carboxylic
Alkyl halide
Ester
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Question # 6
Triple point of water is
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273 K
373 K
203 K
193 K
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Question # 7
All of the following are essential amino acids except
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Lysine
Aspartate
Tryptophan
Hisitidine
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Question # 8
The volume of 2.8 g of CO at 27°C and 0.0821 atm is
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30 dm
3
3 dm
3
0.3 dm
3
1.5 dm
3
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Question # 9
Chlorination of water is effective for
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Killing pathogens
Removing dust
Removing hardness
Increasing oxygen content
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Question # 10
Cl
2
is a gas while iodine is a solid due to
Choose an answer
stronger London forces with high polarizability
greater electro negativity of Cl than iodine
stronger dipole dipole forces
iodine is colored while chlorine is colourless
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Question # 11
What will be the shape of a molecule which containstwo sigma bond pairs and one lone pair?
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Linear
V shape
Tetragonal
Triangular
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Question # 12
Which alloy contains 50% copper, 25% zinc and 25% nickel
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German silver
Gun metal
Bell metal
Brass
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Question # 13
Acetic acid is miscible in:
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Water
Alcohol
Either
All of these
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Question # 14
The formation of compounds like PF
5
, BCI
3
, SF
6
indicates that
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These halides are ionic
These halides are covalent
They are Lewis acids
Octet rule not obeyed so the rule is not universal
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Question # 15
Basicity of orthoposphoric acid is
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2
3
4
5
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Question # 16
During the preparation of alkynes the active metals that react with tetra halo-alkanes are
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Zn
Mg
Both a and b
None
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Question # 17
When a nitrogeneous base combine with a sugar it is called
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Ribose
Nucleotides
Nucleoside
None
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Question # 18
The order of reactivity of halogen acids for reaction with C
2
H
5
OH is
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HCl > HBr > HI
HI > HBr > HCl
HBr > HI > HCl
HBr > HCl > HI
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Question # 19
The solid remained on filter paper during filtration is called the
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Substance
Residue
Undue
Filtrate
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Question # 20
In sp
2
hybridization bond angle is _____
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120°
180°
109.5°
None
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Question # 21
Some of the elements of a period show similar behavior with the elements of next group in next period this is called
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Vertical relationship
Oblique relationship
Diagonal relationship
None
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Question # 22
Which factor is helping to reduce the environmental pollution
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Rapid growth of population
Urbanization
Industrialization
Increase of plantation
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