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9th Class Chemistry Chapter 1 Fundamentals of Chemsitry English Medium KPK Boards Online Mcqs MCQs With Answers
Question # 1
Salt & water is a _________ mixture.
Choose an answer
Homogeneous
Heterogeneous
It is not mixture
Nil
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Question # 2
An ion is a charged particles:
Choose an answer
True
False
In some conditions
Never
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Question # 3
The atomic number of sodium is ............... .
Choose an answer
9
10
11
12
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Question # 4
The value of Avogadro 'no is:
Choose an answer
6.023×1024
6.023×1026
6.023×1023
6.023×1020
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Question # 5
The mass of one molecule of water is:
Choose an answer
18 amu
18g
18mg
18kg
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Question # 6
All chemists invented all except:
Choose an answer
Beakers
Spirit lamp
Funnels
Retorts
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Question # 7
The No. of atoms in 1 mole of carbiton is
Choose an answer
6.02 x 1021
6.02 x 1022
6.02 x 1023
6.02 x 1024
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Question # 8
Which one of the following element is found in most abundance in the earth's crust?
Choose an answer
Oxygen
Aluminum
Silicon
Iron
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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
Which of the following can be separated by physical means?
Choose an answer
Mixture
Element
Compound
Radical
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Question # 11
One mole of sodium = ______ .
Choose an answer
24 g
25 g
26 g
23 g
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Question # 12
The molecular mass of water is
Choose an answer
16 amu
14 amu
18 amu
20 amu
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Question # 13
The number of proton in an atom is called _________ number.
Choose an answer
Molecule
Formula
Atomic
Molar
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