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Online Tests
Chemistry 9th Class English Medium Unit 1 Online Test MCQs With Answers
Question # 1
Mixture has _________ types.
Choose an answer
3
2
1
No types
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Question # 2
___________ is a pure substance that can be broken down.
Choose an answer
Matter
Element
Mass
Mixture
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Question # 3
The formula of benzene is _________
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C6H6O3
C6H6
C12H22
Nil
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Question # 4
A _________ is a pure substance is made up of two or more elements.
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Mixture
Elements
Solution
Compound
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Question # 5
................. can be decomposed into simpler substanmce.
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Compound
Element
Solution
Mixture
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Question # 6
O3, Ozone is _________ molecules.
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Homoatomic
Hetroatomic
Monoatomic
Nil
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Question # 7
Sort out a compound from the following
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Air
Salt
Ice-cream
Iron
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Question # 8
Atoms as a whole is _________
Choose an answer
+
_
No
Neutral
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Question # 9
The symbol of lead us
Choose an answer
As
Pb
Sb
Na
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Question # 10
The most abundant element occurring in the oceans is:
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Oxygen
Hydrogen
Nitrogen
Silicon
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Question # 11
The empirical formula of glucose is
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CHO
CH2O
C2HO
CHO2
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Question # 12
Industrial chemistry deals with the manufacturing of compounds:
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in the laboratory
on micro scale
on commercial scale
on economic scale
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Question # 13
The smallest under of an ionic compound is
Choose an answer
Atom
Formula unit
Ion
Molecule
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