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Chemistry General Science Test Medium Mode MCQs With Answers
Question # 1
alum or aluminium sulphate used as coagulant in alkaline medium change into precipitate of radicals of alumimium.
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sulphates
oxides
hydroxides
chlorides
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Question # 2
The solubility of Fe(OH)3 is 'x' mole per dm3. Its Ksp would be
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9X3
3X4
27X4
9X4
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Question # 3
Coenzymes are the species which increase the activity of enzymes. They are chemically
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Metal ions
non-metals
Organic acids
Organic bases
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Question # 4
In a crystal the atoms are locate at the position of:
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infinite potential energy
minimum potential energy
Zero potential energy
maximum potential
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Question # 5
In the body carbohydrates are broken down into:
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glucose
fatty acids
amino acids
nucleic acid
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Question # 6
The structure normally associated with ionic bonding is:
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a giant lattice
a simple molecule
a giant molecule
a regular arrangement of ions surrounded by a sea , or cloud, of electrons
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Question # 7
The no. of Ip's on oxygen in CO are
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1
3
4
2
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Question # 8
The bonding occurs among polar covalent molecules containing H and one of the small electronegative element such as O,F or N is called:
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Ionic bonding
Metallic bonding
Bridge bonding
H-bonding
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Question # 9
Properties of polymeric material depends upon
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Chemical composition
Structure of molecule
Boiling point
Both A and B
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Question # 10
A pressure of 1Nm
-2
is equal to:
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one bar
one pascal
stalagmometer
one aomosphere
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Question # 11
Atmosphere consists of gasses:
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N
2
O
2
Ar
All
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Question # 12
Cane sugar is not soluble in benzene but soluble in water because
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Cane sugar is a macro molecule
Cane sugar is an ionic compound
Can sugar has hydrogen bonding
Can sugar is an organic molecule
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Question # 13
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NH
3
HCl
KCN in C
2
H
5
OH NaOH
KCN in C
2
H
5
OH HCl
HCN NaOH
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Question # 14
Eletronegativity difference in C-C bond in alkanes is:
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Zero
Double
Half
4.0
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Question # 15
Zwitter ion is ______ ion an amino acid
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Polar
Monopular
Dipolar
Non polar
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Question # 16
The orbital in Rutherford's model is
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Spiral
Circular
Both
None
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Question # 17
Cracking normally gives smaller ______
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Alkanes
Alkenes
Alkynes
Both a and b
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Question # 18
The rate of reaction determined at a given time is called
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Average rate
Instantaneous rate
Specific rate
Overall rate
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Question # 19
Bronze is an alloy of Cu and
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Zn
As
Sb
Sn
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Question # 20
By applying Hess's law, we can calculate
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Δ
H
Δ
S
Δ
F
K
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Question # 21
Which colour is imparted by sodium
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Yellow
Violet
Red
Crimson
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Question # 22
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Small change in concentration of product
Small time internal
Co-efficient of the reactant
Co-efficient of the product
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