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
Which one is largest?
Choose an answer
Exo
Peta
Atto
Pico
Previous
Skip
Next
Question # 2
The value of Avogadro 'no is:
Choose an answer
6.023×1024
6.023×1026
6.023×1023
6.023×1020
Previous
Skip
Next
Question # 3
Number of protons+ neutrons is :
Choose an answer
Atomic mass
Mass numbers
Both
Nil
Previous
Skip
Next
Question # 4
There are _________ types of bonds.
Choose an answer
1
2
3
4
Previous
Skip
Next
Question # 5
The equation of relationship between atomic number (Z) and mass number (A) is
Choose an answer
A = Z + N
A = Z - n
A = Z
A =2Z + n
Previous
Skip
Next
Question # 6
105 elements were discovered by the year ________________
Choose an answer
1984
1974
1086
1996
Previous
Skip
Next
Question # 7
Scientist used ___________ method.
Choose an answer
Scientific
Non-scientific
Bot
Non
Previous
Skip
Next
Question # 8
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 # 9
O3, Ozone is _________ molecules.
Choose an answer
Homoatomic
Hetroatomic
Monoatomic
Nil
Previous
Skip
Next
Question # 10
The most abundant element occurring in the oceans is:
Choose an answer
Oxygen
Hydrogen
Nitrogen
Silicon
Previous
Skip
Next
Question # 11
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
Previous
Skip
Next
Question # 12
The period of Alchemists extends from _________ AD.
Choose an answer
800 to 1800
600 to 1600
900 to 1900
700 to 1700
Previous
Skip
Next
Question # 13
Industrial chemistry deals with the manufacturing of compounds:
Choose an answer
in the laboratory
on micro scale
on commercial scale
on economic scale
Previous
Skip
Next
Back