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Online Tests
Chemistry 9th Class English Medium Online Test MCQs With Answers
Question # 1
The no.of electrons in the valence shell of noble gases is
Choose an answer
1
6
7
8
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Question # 2
The vapour pressure of a liquid increase with the:
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increase pressure
increase of temperature
increase of intermolecular forces
increase of polarity of molecules
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Question # 3
The smallest under of an ionic compound is
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Atom
Formula unit
Ion
Molecule
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Question # 4
For ________________ "like dissolves like".
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Metals
Bonds
Solubility
Nil
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Question # 5
How many numbers of moles are equivalent to 8 grams of CO
2
?
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0.15
0.18
0.21
0.24
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Question # 6
The amount of energy given out when an electron is added to any atom is called:
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lattice energy
ionization energy
electronegative
electron affinity
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Question # 7
Electrolyte is ____________ solid form.
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in
Sometimes in
Never in
Always in
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Question # 8
The no. of electrons in the valence shell of alkali metals is
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1
2
4
7
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Question # 9
The types of solutions on the basis of their physical states are
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3
6
9
12
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Question # 10
The solubility of which salt increases in heating?
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Li
2
SO
4
Ce
2
(SO
4
)
3
NaCI
KCI
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Question # 11
____________ agents gains electrons in chemical reaction.
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Reduction
Oxidation
Both
None of these
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Question # 12
Transfer of electrons between atoms results in:
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metallic bonding
ionic bonding
covalent bonding
coordinate covalent bonding
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Question # 13
Electrons carry _________ charge.
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+
_
Neutral
Bouble Positive
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