Worksheets9 Class Symbols & Formulae 4
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
Symbol of potassium is
a)
Pb
b)
Na
c)
Fe
d)
K
2.
The Latin name of Tungsten
a)
Natrium
b)
Kalium
c)
Wolfram
d)
sulphur
3.
Correct method of representing a symbol of an element is
a)
BE
b)
he
c)
al
d)
Cr
4.
This element is octatomic?
a)
Nitrogen
b)
Oxygen
c)
Carbon
d)
Sulphur
5.
The valency of sulphate ion is
a)
2-
b)
2+
c)
3-
d)
3+
6.
In NH4Cl, the cation is
a)
Cl-
b)
NH4+
c)
NH4Cl
d)
none
7.
Washing soda is the common name of
a)
Na2CO3.10 H2O
b)
NaHCO3
c)
Na2SO4
d)
Na3PO4
8.
What is the colour of silver?
a)
Yellow
b)
Blue
c)
Brown
d)
Gray
9.
The formula of Aluminium ion is
a)
Al⁺³
b)
Al⁺¹
c)
Al⁺²
d)
Al°
10.
The formula of Ammonium is
a)
NH₄⁺³
b)
NH₄⁺¹
c)
NH₄NH₄
d)
NH₄°
11.
The formula of Bromide ion is
a)
Br¹⁻
b)
Br⁺¹
c)
Br⁺²
d)
Br⁻²
12.
The symbol of Calcium is
a)
Ca⁺²
b)
Ca
c)
Cl⁺¹
d)
Ca¹⁻
13.
The formula of Carbonate ion is
a)
CO3¹⁻
b)
CO3⁻²
c)
CO2
d)
CO⁻²
14.
The formula of Chloride ion is
a)
Cl¹⁻
b)
Ch¹⁻
c)
Cr
d)
Cl²⁻
15.
The symbol of Copper is
a)
C
b)
Cp
c)
Co
d)
Cu
16.
The formula of dichromate ion is
a)
DCr
b)
DCrO3
c)
Cr2O7⁻²
d)
No answer
17.
The formula of hydride ion is
a)
Hy
b)
H¹⁻
c)
Hd
d)
H
18.
The symbol of Hydrogen is
a)
Hy
b)
H¹⁻
c)
Hd
d)
H
19.
The formula of Iodide ion is
a)
I
b)
I¹⁻
c)
Id
d)
Io
20.
The symbol of Iron is
a)
I
b)
Ir
c)
F
d)
Fe
21.
The symbol of Magnesium is
a)
M
b)
Ma
c)
Mn
d)
Mg
22.
The formula of Nitrate ion is
a)
NO3¹⁻
b)
NO3°
c)
NO2
d)
NO⁻²
23.
The formula of Nitride ion is
a)
N³⁻
b)
N¹⁻
c)
N⁺³
d)
H¹⁻
24.
The formula of Oxide ion is
a)
O
b)
O⁻²
c)
Ox
d)
Ox¹⁻
25.
The formula of posphate ion is
a)
PO₄⁺³
b)
PO₄⁻³
c)
PO⁻
d)
P⁻
26.
The symbol of Silver is
a)
Ag
b)
S
c)
Si
d)
Sl
27.
The symbol of Sodium is
a)
S
b)
So
c)
SO
d)
Na
28.
The formula of sulphate is
a)
SO₄⁺³
b)
SO₄⁻²
c)
SO⁻
d)
S⁻
29.
The formula of sulphide is
a)
S
b)
Sl
c)
Sd
d)
S⁻²
30.
The symbol of Zinc is
a)
Zi
b)
Zc
c)
Z
d)
Zn
100 %
