NEW
Font size
S
M
L
XL
WorksheetsATOMS AND MOLECULES
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Who named the smallest particles are called Parmanu
a)
Kanada
b)
Katyayama
c)
Lavoiser
d)
Dalton
2.
What are the building blocks of all matter
a)
Atoms
b)
Molecules
c)
Both A and B
d)
Only A
3.
Atomic radius is measured in
a)
Centimetre
b)
Millimetre
c)
Nanometer
d)
Kilometre
4.
The symbol of chlorine is
a)
CL
b)
cL
c)
Cl
d)
Chl
5.
The Latin name of gold
a)
Auram
b)
Natrium
c)
Kalium
d)
None
6.
One atomic mass unit is a mass unit equal to exactly Carbon
a)
1/16th
b)
1/12th
c)
1/10th
d)
1/14th
7.
The number of atoms constituting a molecule is known as its
a)
Element
b)
Compound
c)
Ions
d)
Atomicity
8.
The formula of baking powder
a)
NaH CO3
b)
Na2 CO3
c)
NanO3
d)
Na2SO4
9.
Calculate the molecular mass of HNO3
a)
68U
b)
42U
c)
63U
d)
65U
10.
Calculate the formula unit mass of ZnO
a)
76U
b)
38U
c)
83U
d)
81U
Reset
