Chemistry Past Paper Questions

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Q 441:Hydrogen Bonding is represented by:
A
Arrow
B
Dotted Line
C
Single Line
D
Double Line
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Q 442:Identify which pair has polar covalent Bond:
A
O2 an Cl2
B
H2O and N2
C
H2O and C2H2
D
H2O and HCl
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Q 443:In the diagram the dotted line shows:
A
hydrogen bonding
B
ionic bond
C
covalent bond
D
metallic bond
Faisalabad, 2018
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Q 444:In which molecule polar covalent bond exists?
A
H2
B
Cl2
C
HCl
D
N2
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Q 445:Industrial chemistry deals with the manufacturing of compounds.
A
In the Laboratory
B
One Micro scale
C
On Commercial scale
D
On economical scale
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Q 446:Industrial chemistry deals with the manufacturing of compounds:
A
In the laboratory
B
On micro scale
C
On commercial scle
D
on domestic scale
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Q 447:Long Form of Periodic table is constructed on the basis of:
A
Mendeleev postulate
B
Atomic Number
C
Atomic Mass
D
Mass Number
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Q 448:Long form of periodic table was based upon the:
A
Mendeleev postulate
B
Atomic Number
C
atomic mass
D
mass number
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Q 449:Molarity is the number of moles of solute dissolved in:
A
1kg of solution
B
100g of solution
C
1d3m3 of solvent
D
1dm3 of solution
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Q 450:Number of elements in fourth period of Modern periodic Table is:
A
2
B
8
C
18
D
32
Faisalabad, 2018
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Total MCQs: 1548Page 45 of 155
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