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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
Choose the crop for which ammonium nitrate is not used:
Choose an answer
paddy rise
cotton
wheat
sugar cane
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Question # 2
What is name of hydrated variety of quartz?
Choose an answer
Rose quartz
Smokey quartz
Silica
Opal
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Question # 3
NaCI is completely ionized in water due to the presence of:
Choose an answer
dipole-dipole forces
ion- dipole forces
H-bonding
London dispersimforces
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Question # 4
Halogens form halogen acids. HF is the weakest among all of them This is due to the reason that
Choose an answer
fluorine is a very small-sized atom
fluorine is highly electronegative atom
there is strong hydrogen bonding in HF
the polarity of HF bond is less
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Question # 5
Ketones are less reactive than aldehydes because:
Choose an answer
alkyl groups electorn donation
steric hindrance is greater in ketone
both a and b
ketones are non-polar
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Question # 6
Which of the following is pseudosolid?
Choose an answer
CaF
2
Glass
NaCl
All
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Question # 7
which one of the following statements bout negative ions is incorrect?
Choose an answer
they are also know as anions
they are formed when atoms gain electrons
they are large than the atom from which they were formed
they are smaller than the atom from which they were formed
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Question # 8
The value of Kc for H2O at 25C° is
Choose an answer
1x10 (-14)mole dm-3
14 mol dm-3
1.86×10(-16) mol dm-3
1.0x10 (-7)moldm-3
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Question # 9
The boiling point of glycerin at 1 atmospheric pressure is:
Choose an answer
290°C
390°C
190C°
210°C
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Question # 10
The values of ∆H for the process l(g)+e-1--------->
I-1(g) is:
Choose an answer
>0
<0
0
None
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Question # 11
The elements like N,P,K added into the large amount in soil are called:
Choose an answer
Basic elements
Additives
Macronutrients
Micronutrients
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Question # 12
Water which his considered to be safe for human consumption is known as
Choose an answer
Distilled water
Contaminated water
Potable water
Rain water
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Question # 13
How is the secondary structure of protein stabilized
Choose an answer
Through hydrogen bonding
Through ionic bonding
Through van der wall forces
Through covalent bonding
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Question # 14
Choose an answer
[A] = [B]
[A] < [B]
[B] = [C]
[A] > [B]
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Question # 15
The rate of reaction :
Choose an answer
Increase as the reaction proceeds.
Decreases as the reaction proceeds.
Remains the same as the reaction proceed.
May decrease or increase as the reaction proceeds.
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Question # 16
The addition of unsymmetrical reagent to unsymmetrical alkene is in accordance with the rule:
Choose an answer
Hund's rule
Markownikov's rule
Pauli's Exclusion Principle
Auf bau Principle
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Question # 17
Which of all following compound is not possible
Choose an answer
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Question # 18
In the presence of copper electrodes the electrolysis of aqueous CuSO
4
produces at cathode
Choose an answer
H
2
gas
O
2
gas
SO
2
gas
Cu metal
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Question # 19
The ratio of the ionization energy of H and Be
3+
is
Choose an answer
1 : 1
1 : 3
1 : 9
1 : 16
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Question # 20
The percentage of nitrogen in ammonia is
Choose an answer
80%
82%
90%
50%
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Question # 21
Acetamide is
Choose an answer
Highly acidic
Highly basic
Neutral
amphoteric
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Question # 22
Aldehydes are reduced to :
Choose an answer
Pri-alcohol
Sec-alcohol
Ter-alcohol
All of these
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