More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Chemistry 9th Class English Medium Unit 1 Online Test MCQs With Answers
Question # 1
O3, Ozone is _________ molecules.
Choose an answer
Homoatomic
Hetroatomic
Monoatomic
Nil
Previous
Skip
Next
Question # 2
The fundamental unit of elements is ___________
Choose an answer
Molecule
Atom
Matter
Mixture
Previous
Skip
Next
Question # 3
The symbol of sodium is :
Choose an answer
Sa
Na
Pa
Ca
Previous
Skip
Next
Question # 4
Amadeo Avogadro was a _______________ scientist.
Choose an answer
Italian
English
Greek
Russian
Previous
Skip
Next
Question # 5
A _________ is a pure substance is made up of two or more elements.
Choose an answer
Mixture
Elements
Solution
Compound
Previous
Skip
Next
Question # 6
Salt & water is a _________ mixture.
Choose an answer
Homogeneous
Heterogeneous
It is not mixture
Nil
Previous
Skip
Next
Question # 7
Free radical is a
Choose an answer
Extremely stable
Extremely reactive
Extremely inert
All of these
Previous
Skip
Next
Question # 8
The mass of one molecule of water is:
Choose an answer
18 amu
18g
18mg
18kg
Previous
Skip
Next
Question # 9
The symbol of lead us
Choose an answer
As
Pb
Sb
Na
Previous
Skip
Next
Question # 10
How many numbers of moles are equivalent to 8 grams of CO
2
?
Choose an answer
0.15
0.18
0.21
0.24
Previous
Skip
Next
Question # 11
The smallest under of an ionic compound is
Choose an answer
Atom
Formula unit
Ion
Molecule
Previous
Skip
Next
Question # 12
One mole of sodium = ______ .
Choose an answer
24 g
25 g
26 g
23 g
Previous
Skip
Next
Back