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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Property due to which water acts as a universal solvent is
Choose an answer
Polarity
It's ability to make hydrogen bond
Both A and B
Strong dipole dipole interaction
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Question # 2
Essential alpha-amino acids are those which are necessary in the diet.
Which one is an essential alpha-amino acids
Choose an answer
Alanine
Aspartic acid
Glycine
Tryptophan
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Question # 3
There are _________ types of solids
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1
2
3
4
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Question # 4
The development of industries was a direct result of which major factor
Choose an answer
population
living standards
depletion of resources
all of these
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Question # 5
The polymers which can be re-softened again and again are called
Choose an answer
Thermoplastic
Thermosetting
Both a and b
None
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Question # 6
one gram of carbohydrate yields energy:
Choose an answer
10kcal
100kcal
4kcal
9kcal
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Question # 7
The most unsymmetrical one in crystal system is
Choose an answer
triclinic
Li, Na, K
monoclinic
hexagonal
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Question # 8
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 # 9
On the basis of intermolecular forces diamond is a
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ionic solid
covalent solid
metallic solid
molecular solid
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Question # 10
According to Boyles law, at constant temperature the product of pressure and volume of a given mass of gas is
Choose an answer
whole number
a constant
fraction
a multiple
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Question # 11
Cane sugar on hydrolysis gives
Choose an answer
Glucose+Glucose
Glucose+Fruclose
Glucose+Galactose
Glucose+Gacatose
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Question # 12
Which of the following correctly describes the process occurring at the electrodes when molten NaCl is electrolyzed:
Choose an answer
No reaction at anode, reduction at cathode.
No reaction at cathode, oxidation at anode.
Oxidation at anodes, reduction at cathode.
Oxidation at cathode, reduction at anode.
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Question # 13
Which one of the following is used as antifreeze in the radiator
Choose an answer
Methanol
Ethanol
Ethylene glycol
Glycerin
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Question # 14
For a given process the heat change at constant pressure q
p
is related to the heat change at constant volume (q
v
) according to
Choose an answer
q
p
= q
v
q
p
< q
v
q
p
> q
v
q
p
= qv/2
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Question # 15
Alkanes may be prepared by the reaction of alkyl halides with
Choose an answer
Alcohol
Carboxylic acid
Grignard reagents
None of these
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Question # 16
For principle quantum number n=4, the total number of orbitals having l = 3 is
Choose an answer
3
7
5
9
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Question # 17
The mass of sulphur which combines with 24 grams oxygen to form SO
2
Choose an answer
32 gram
24 gram
8 gram
12 gram
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Question # 18
Choose an answer
Treatment with HCN followed by acid hydrolysis
Oxidation of acetaldehyde followed by basic hydrolysis
Treatment with HCN followed by reduction
Treatment with HCN followed by oxidation
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Question # 19
C
6
H
12
O
6
and C
12
H
22
O
11
are:
Choose an answer
Mono-atomic molecules
Diatomic molecules
Poly-atomic molecules
Heter
o atomic molecules
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Question # 20
A special application of the Hess's law to binary ionic compounds of M
+
X
-
type in calculation of their lattice energies is
Choose an answer
Enthalpy of reaction
Born-haber cycle
First law of thermodynamics
Enthalpy of combustion
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Question # 21
The number of unpaired electrons in ferrous ion ( Z - 26) is
Choose an answer
3
2
4
5
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Question # 22
Which fills the space between needles in cement setting?
Choose an answer
Ca(OH)
2
Al(OH)
3
CaCO
3
MgSO
4
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