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Chemistry 9th Class English Medium Online Test MCQs With Answers
Question # 1
For diagnosis of goiter in thyroid gland we use
Choose an answer
Co-60
C-14
I-131
Sr-90
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Question # 2
Atoms of elements combine chemically to form:
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Mixtures
compounds
solutions
ions
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Question # 3
Air is an example of:
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Gas in gas
Solid in gas
Liquid in gas
Gas in ;iquid
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Question # 4
Which one of the following gas diffuses faster?
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hydrogen
helium
fluorine
chlorine
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Question # 5
Non-metals do not reaction with
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Strong bases
Concentrated acids
Dilute acids
Salts
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Question # 6
Intermolecular forces are ____________ than chemical bonds.
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Stronger
Weaker
Wqual
Nil
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Question # 7
Which one is least oxidizing agent?
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F
CI
I
Br
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Question # 8
The value of Avogadro 'no is:
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6.023×1024
6.023×1026
6.023×1023
6.023×1020
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Question # 9
Which is an acceptor molecule/ion?
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N
2
O
2
H
+
CH
4
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Question # 10
____________ agents gains electrons in chemical reaction.
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Reduction
Oxidation
Both
None of these
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Question # 11
Mixture has _________ types.
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3
2
1
No types
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Question # 12
Which one is strong electrolyte ?
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NH4OH
NaOH
a & b
Nil
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Question # 13
Water dissolves ____________ compound.
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Ionic
Polar covalent
A & B
Nil
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