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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
To prepare ethane by Wurtz synthesis the suitable alkyl halide is
Choose an answer
Ethyl iodide
any alkyl iodide
Ethyl chloride
Methyl bromide
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Question # 2
Which of the following is not a property of crystalline solid
Choose an answer
geometric shape
cleavage plane
anisotropy
isomerism
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Question # 3
Palmitic acid & steanic acid are obtained from process of fats & oils:
Choose an answer
Reducing
Neutralization
Oxidation
Hydrolysis
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Question # 4
The most suitable temperature for preparing ammonia gas is
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250℃
450℃
350℃
550℃
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Question # 5
When the concentration of product is increased the instantaneous rate of reaction with reference to reactants will be
Choose an answer
Positive
Negative
the same
falling curve
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Question # 6
Phosphoprotein comes under the type of proteins
Choose an answer
Simple protein
Derived protein
Conjugated
Both A & B
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Question # 7
Which one of following statement about three about three states of matter is incorrect?
Choose an answer
in solids the particles vibrate about fixed positions
energy is released when a gas turns back to a liquid
particles in gases move in a random manner
the closer particles are together, smaller the force of attraction between them
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Question # 8
The volume of a real gas
Choose an answer
is constant
increases with T decrease
becomes zero at absolute zero
never becomes zero
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Question # 9
Equal volume of all gases at same temperature and pressure contain number of molecules
Choose an answer
different
multiples
equal
in fractions
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Question # 10
Which one increases by common ion effect except?
Choose an answer
Crystallization
Solubility
Association of ions
All of these
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Question # 11
How magnesium reacts with water?
Choose an answer
In frozen ice water
With cold water
In with steam
In hot state
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Question # 12
A dry alkaline cell has porous Zn anode and MnO
2
as cathode the electrolyte used is
Choose an answer
Ca(OH)
2
NaOH
KOH
NH
4
OH
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Question # 13
Which element does not belong to 3d transition series
Choose an answer
Ti
V
Mn
Te
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Question # 14
Which woody raw material is used of the manufacture of paper pulp
Choose an answer
Cotton
Bagasse
Poplar
Rice straw
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Question # 15
Mass of simple electron is:
Choose an answer
9.1 x 10
-31
kg
9.1 x 10
-30
kg
1.66 x 10
-31
kg
9.1 x 10
-31
kg
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Question # 16
The wave length of electron as wave is 0.5 nm. What is the wave length in meter
Choose an answer
5 x 10
-9
5 x 10
-12
5 x 10
-6
5 x 10
-10
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Question # 17
Concentration of rectified spirit is:
Choose an answer
12%
14%
90%
95%
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Question # 18
Pure water does not conduct electricity because it
Choose an answer
Has low boiling point
Is almost unionized
Is neutral
Is readily decomposed
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Question # 19
In chromatography, the point at which solvent maximum rises called:
Choose an answer
Solvent front
Base line
Element
Chromatogram
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Question # 20
For a given process, the heat change at constant pressure (p) and constant volume (v) are related to each other as
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Question # 21
CsF is an ionic compound because:
Choose an answer
High I.P of Cs and high E.A of F.
High I.P of Cs and low E.A of F.
Low I.P of Cs and high E.A of F.
Low I.P of Cs and low E.A of F.
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Question # 22
The equivalent conductivity of 0.1 M week acid is 100 times less than at infinite dilution. The degree of dissociation is
Choose an answer
100
10
0.01
0.001
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