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Online Tests
Chemistry 9th Class English Medium Unit 1 Online Test MCQs With Answers
Question # 1
Atoms as a whole is _________
Choose an answer
+
_
No
Neutral
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Question # 2
The mass of one molecule of water is:
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18 amu
18g
18mg
18kg
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Question # 3
Which one is largest?
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Exo
Peta
Atto
Pico
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Question # 4
_________ shells of noble gases is complete.
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Outer most
2
1
Nil
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Question # 5
The atomic number of sodium is ............... .
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9
10
11
12
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Question # 6
Mixture has _________ types.
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3
2
1
No types
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Question # 7
The molecular mass of water is
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16 amu
14 amu
18 amu
20 amu
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Question # 8
The study of hydrocarbons and their derived compounds is called
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Physical chemistry
Inorganic chemistry
Organic chemistry
Biochemistry
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Question # 9
One amu (atomic mass unit) is equivalent to:
Choose an answer
1.66x10
-24
mg
1.66x 10
-24
g
1.66x10 g
1.66x10
-23
mg
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Question # 10
Atoms are made of sub _________
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Atoms
Molecules
Charge
Atomic particles
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Question # 11
Na__ Na++ e , what type of ionit is :
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Positive
Negative
Neutral
Charged
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Question # 12
The number of proton in an atom is called _________ number.
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Molecule
Formula
Atomic
Molar
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Question # 13
The empirical formula of glucose is
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CHO
CH2O
C2HO
CHO2
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