Free Printable symbols and valencies

1.

How many elements are in C₆H₁₂O₆?

a)

1

b)

2

c)

3

d)

4

2.

Element or compound?
H₂O

a)

element

b)

compound

3.

Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)

a)

H₃SO₄

b)

HSO₄

c)

H₄S₃O

d)

H₂O

4.

Which is the correct formula for:
one carbon (C)
two oxygen (O)

a)

CO₂

b)

CO

c)

C₂O

d)

2CO

5.

Black = Carbon (C)
White = Hydrogen (H)
What would be the formula for ethane?

a)

CH₄

b)

CH₆

c)

C₂H₂

d)

C₂H₆

6.

How many Hydrogen are in 4H₂O?

a)

6

b)

8

c)

2

d)

4

7.

What is the chemical formula of Magnesium chloride?

a)

MgCl

b)

MgCl₂

c)

MgC

d)

MgC₂

8.

What is the chemical formula of sodium sulfate?

a)

SSO₄

b)

SoSO₄

c)

NaSO₄

d)

Na₂SO₄

9.

What is the name of this chemical, H₂SO₄?

a)

Hydrogen sulfate

b)

Sulfuric acid

c)

Sulfate

d)

Sulfate hydrogen

10.

What is the formula of Copper (II) oxide?

a)

CUO

b)

CuO

c)

CuO₂

d)

Cu₂O

11.

What is the formula of nitric acid?

a)

H₂SO₄

b)

HNO₃

c)

HCl

d)

hno₃

12.

Which of the following compound is not an acid?

a)

HCl

b)

H₂SO₄

c)

HNO₃

d)

CH₄

13.

What is the name of ion that is present in all acids?

a)

hydrogen ion

b)

hydroxide ion

c)

nitrate ion

d)

sulfate ion

14.

How many atoms are there in the compound MgCO₃?

a)

3

b)

4

c)

5

d)

6

15.

The formula of iron(III) oxide is

a)

FeO

b)

FeO₂

c)

Fe₂O

d)

Fe₂O₃

16.

The formula of calcium hydroxide is

a)

CaOH

b)

Ca(OH)₂

c)

Ca(OH)₃

17.

The formula of sodium carbonate is

a)

NaCO₃

b)

Na(CO₃)₂

c)

Na₂CO₃

18.

The name of KHCO₃ is

a)

potassium carbonate

b)

potassium hydrogencarbonate

19.

The formula of iron(II) hydroxide is

a)

FeOH₂

b)

FeOH

c)

Fe(OH)₂

d)

Fe(OH)₃

20.

The formula of ammonium ion is

a)

NH₃

b)

NH₃⁺

c)

NH₄

d)

NH₄⁺

21.

Valency of Li is

a)

+1

b)

-1

c)

+2

d)

-2

22.

Valency of nitride is

a)

-1

b)

-2

c)

-3

d)

-4

23.

Valency of bicarbonate is

a)

+1

b)

-1

c)

+2

d)

-2

24.

Variable valency of lead are

a)

+1,+2

b)

+2,+3

c)

+1,+3

d)

+2,+4

25.

valency of dichromate is

a)

+1

b)

+2

c)

-1

d)

-2

26.

valency of zincate is

a)

+1

b)

+2

c)

-1

d)

-2

27.

Symbol for plumbite is

a)

PbO2

b)

Pb2O

c)

PbO

d)

None of the above

28.

Symbol for permanganate is

a)

K2Cr2O7

b)

CrO7

c)

MnO4

d)

Mn4O

29.

Symbol for hypoclorite is

a)

Cl2O

b)

ClO

c)

HClO

d)

HClO2

30.

Symbol for phosphite is

a)

PO3

b)

PO4

c)

P4

d)

P3

31.

valency of zincate is

a)

+1

b)

+2

c)

-1

d)

-2

32.

Ionic Bonding is the electrostatic force of attraction between:

a)

Two non-metals

b)

A metal ion and a non-metal ion

c)

Molecules of water

d)

Protons and neutrons in the nucleus

33.

Fluorine is in Group 7. It has seven electrons on its outer shell. What is its valency?

a)

7

b)

2

c)

1

d)

5

34.

What type of bonding occurs between Magnesium metal and Oxygen gas?

a)

Ionic Bonding

b)

Hydrogen Bonding

c)

Magnetic Forces

d)

Covalent Bonding

35.

When a metal bonds to a non-metal, what happens to its outermost or valence electrons?

a)

It will share them with Hydrogen

b)

It will lose them to become positively charged

c)

It will gain more to become negatively charged

d)

It will dissolve in water to form a solution

36.

Which of the following are ions?

a)

Ca²⁺

b)

Cl^-

c)

CO₃^2-

d)

All of the above

37.

What is the formula for Magnesium Fluoride?

a)

Mg₂F

b)

2Mg₂F

c)

MgF₂

d)

MgF₃

38.

What type of bonding is found in a water molecule?

a)

Covalent Bonding

b)

Gravitational Attraction

c)

Ionic Bonding

d)

Affinity for Oxygen

39.

Neon is a noble gas, in Group 8. It has eight electrons on its outer shell. What is its valency number?

a)

8

b)

0

c)

7

d)

2

40.

All the properties of ionic compounds are correct EXCEPT:

a)

Force of attraction between a cation and an anion

b)

Cation is positive and anion is negative

c)

Electrons are shared between the molecules

d)

Metals lose electrons which are gained by the non-metals

41.

What are the elements which make up the formula Na₂CO₃?

a)

Nascium, Cobalt and Oxygen

b)

Sodium, Copper and Osmium

c)

Nitrogen, Carbon and Oxygen

d)

Sodium, Carbon and Oxygen

42.

Write the chemical formula for Aluminium Oxide (2 marks)

4 lines

43.

Write the balanced chemical equation for the reaction of solid aluminium reacting with oxygen gas to form solid aluminium oxide. Please include all state symbols (3 marks).

4 lines

44.

Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)

a)

H₃SO₄

b)

HSO₄

c)

H₄S₃O

d)

H₂O

45.

How many Hydrogen are in 4H₂O?

a)

6

b)

8

c)

2

d)

4

46.

The particles that are found in the nucleus of an atom are

a)

neutrons and electrons

b)

electrons only

c)

protons and neutrons

d)

protons and electrons

47.

How many valence electrons does carbon have?

a)

4

b)

5

c)

6

d)

7

48.

What is the chemical formula of Magnesium chloride?

a)

MgCl

b)

MgCl₂

c)

MgC

d)

MgC₂

49.

What is the formula of Copper (II) oxide?

a)

CUO

b)

CuO

c)

CuO₂

d)

Cu₂O

50.

How many atoms are there in the compound MgCO₃?

a)

3

b)

4

c)

5

d)

6

51.

The formula of calcium hydroxide is

a)

CaOH

b)

Ca(OH)₂

c)

Ca(OH)₃

52.

What is the correct symbol for Aluminum

a)

A

b)

Au

c)

Al

d)

An

53.

Ca is the chemical symbol for

a)

Carbon

b)

Calcium

c)

Chlorine

d)

Copper

54.

The chemical symbol for Potassium is

a)

P

b)

Pa

c)

Ag

d)

K

55.

Pb is the chemical symbol for

a)

Potassium

b)

Lead

c)

Silver

d)

Gold

56.

The chemical symbol for Iron

a)

Fe

b)

I

c)

Fn

d)

Zn

57.

Hg is the chemical symbol for

a)

Lead

b)

Potassium

c)

Silver

d)

Mercury

58.

The chemical symbol for Sodium is

a)

S

b)

Sd

c)

Nu

d)

Na

59.

Cu is the chemical symbol for

a)

Carbon

b)

Chlorine

c)

Copper

d)

Calcium

60.

O is the chemical symbol for

a)

Oxygen

b)

Argon

c)

Helium

d)

Neon

61.

Cl is the chemical symbol for

a)

Carbon

b)

Calcium

c)

Chlorine

d)

Copper

62.

What is the atomic number and valency of Aluminium?

a)

13,3

b)

13,4

c)

14,5

d)

18,6

63.

The element with atomic number 9 is--------

a)

Oxygen

b)

Neon

c)

Sodium

d)

Fluorine

64.

The symbol of iron

a)

Fe

b)

FE

c)

I

d)

Ir

65.

The symbol for Potassium is

a)

P

b)

K

c)

Po

d)

Ka

66.

Which among the following is not a metallic element?

a)

gold

b)

silver

c)

mercury

d)

carbon

67.

The English name of the element is ________

a)

Silver

b)

Copper

c)

Gold

d)

Aurum

68.

The Latin name of Iron is

a)

Iron

b)

France

c)

Franc

d)

Ferrum

69.

Chemical Symbols represent the ____________________

a)

Name and number of atoms

b)

Initial of Person

c)

Chemical properties of elements

d)

Name of the discover

70.

CHLORINE

a)

C

b)

Ca

c)

Cl

d)

Cu

71.

CALCIUM

a)

C

b)

Ca

c)

Cu

d)

Cl

72.

CARBON

a)

C

b)

Ca

c)

Cl

d)

Cu

73.

COPPER

a)

C

b)

Ca

c)

Cu

d)

Cl

74.

SILVER

a)

Au

b)

Ag

c)

Al

d)

Ar

75.

SULPHUR

a)

Su

b)

S

c)

Sf

d)

Si

76.

SODIUM

a)

S

b)

So

c)

N

d)

Na

77.

HELIUM

a)

H

b)

He

c)

Hl

d)

Hm

78.

HYDROGEN

a)

H

b)

He

c)

Hy

d)

Hd

79.

ZINC

a)

Zn

b)

Z

c)

Zi

d)

Zc

80.

FLUORINE

a)

F

b)

Fl

c)

Fu

d)

Fe

81.

ALUMINUM

a)

Al

b)

Au

c)

Ag

d)

Am

82.

NITROGEN

a)

N

b)

Ne

c)

Ni

d)

Nt

83.

OXYGEN

a)

O

b)

Ox

c)

Oy

d)

Og

84.

MANGANESE

a)

Mg

b)

Ma

c)

Mn

d)

M

85.

MERCURY

a)

Me

b)

Hc

c)

Hg

d)

Hr

86.

What element has the chemical symbol - I ?

a)

Iron

b)

Lead

c)

Iodine

d)

Lithium

87.

What element has the chemical symbol - Mg?

a)

Mercury

b)

Molybdenum

c)

Manganese

d)

Magnesium

88.

What element has the chemical symbol - Ag?

a)

Magnesium

b)

Argon

c)

Mercury

d)

Silver

89.

Symbol for tin

a)

Tn

b)

Si

c)

Sn

d)

St

90.

Plumbum

a)

Silver

b)

Mercury

c)

Sodium

d)

Lead

91.

Si is

a)

Silver

b)

Silicon

c)

Sinc

d)

none of these

92.

Platinum

a)

P

b)

K

c)

Pt

d)

Pl

93.

What is the formula for a magnesium ion?

a)

Mg+

b)

Mg²⁺

c)

Mg^2-

d)

Mg^-

94.

What is the name of this ion? SO₄^2-

a)

sulfur tetroxide ion

b)

sulfonate

c)

sulfate

d)

sulfide

95.

NaClrepresents

a)

Sodium bicarbonate

b)

Sodium carbonate

c)

Sodium Chloride

d)

Calcium Carbonate

96.

NaOHrepresents

a)

Sodium bicarbonate

b)

Sodium carbonate

c)

Sodium Chloride

d)

Sodium Hydroxide

97.

CaCO₃represents

a)

Sodium bicarbonate

b)

Sodium carbonate

c)

Sodium Chloride

d)

Calcium Carbonate

98.

MgO represents

a)

Magnesium Hydroxide

b)

Magnesium Chloride

c)

Magnesium Oxide

d)

Sodium Nitrate

99.

Chemical formula of copper sulphate

a)

CuSO₄

b)

Cu₂SO₄

c)

CuSO₃

d)

none of these

100.

Na₂CO₃represents

a)

Sodium bicarbonate

b)

Sodium carbonate

c)

Sodium Chloride

d)

Calcium Carbonate

101.

NaHCO₃represents

a)

Sodium bicarbonate

b)

Sodium carbonate

c)

Sodium Chloride

d)

Calcium Carbonate

102.

Chemical Formula used for Aluminium oxide is

a)

AlO

b)

Al₂O₃

c)

AlO₄

d)

AlO₂

103.

Aluminium hydroxide

a)

AlOH

b)

Al(OH)₂

c)

Al(OH)₃

d)

Al₂(OH)₃

104.

Potassium carbonate

a)

KCO₃

b)

K(CO₃)₂

c)

K₂CO₃

d)

K₂(CO₃)₂

105.

Iron (II) sulphate

a)

FeSO₄

b)

Fe₂SO₄

c)

Fe(SO₄)₂

d)

Fe₂(SO₄)₃

106.

The formula for sodium oxide is

a)

NaO

b)

Na₂O

c)

Na2O

d)

NaO₂

107.

Mg²⁺ and Cl^- create...

a)

Mg₂Cl

b)

MgCl₂

c)

Mg₂Cl₂

d)

MgCl

108.

H⁺ and S²^- create...

a)

H₂S

b)

HS₂

c)

H₂S₂

d)

HS

109.

Ca²⁺ and N³^- create...

a)

Ca₂N₃

b)

Ca₃N₂

c)

CaN₃

d)

Ca₂N

110.

Pb⁴⁺ and O^2- create...

a)

Pb₂O

b)

PbO₂

c)

Pb₂O₂

d)

PbO

111.

Mg²⁺ and O^2- create...

a)

Mg₂O₃

b)

MgO₂

c)

MgO

d)

Mg₂O

112.

Ba²⁺ and Cl^- create...

a)

Ba₂Cl

b)

BaCl₂

c)

Ba₂Cl₂

d)

BaCl

113.

What is the name of this chemical, H₂SO₄?

a)

Hydrogen sulfate

b)

Sulfuric acid

c)

Sulfate

d)

Sulfate hydrogen

114.

What is the formula of nitric acid?

a)

H₂SO₄

b)

HNO₃

c)

HCl

d)

hno₃

115.

Which of the following compound is not an acid?

a)

HCl

b)

H₂SO₄

c)

HNO₃

d)

CH₄

116.

What is the name of ion that is present in all acids?

a)

hydrogen ion

b)

hydroxide ion

c)

nitrate ion

d)

sulfate ion

117.

Washing soda is the salt Na₂CO₃.10H₂O. What does the 10 H₂O tell us?

a)

Shows the salt is in solution

b)

Shows water is produced when the salt is formed

c)

Shows the salt is anhydrous

d)

Shows there is water of crystallisation

118.

What is the formula for phosphoric acid?

a)

HPO₃

b)

H₃PO₄

c)

H₂PO₄

d)

H₃PO₃

119.

What is the formula for carbonic acid?

a)

CO₃

b)

H₂CO₂

c)

HCO₂

d)

H₂CO₃

120.

What is the formula for nitrous acid?

a)

HNO₃

b)

HNO₄

c)

HNO₂

d)

HNO

121.

Name the following compound.

KOH

a)

Potassium monohydroxide

b)

Potassium hydroxide

c)

Monopotassium monohydroxide

122.

Write the formula of the following compound.

Iron(III) hydroxide.

a)

Fe(OH)₃

b)

Fe(OH)₂

c)

Fe OH₃

123.

Write the formula of the following compound.

Magnesium hydroxide.

a)

Mg(OH)₃

b)

Mg(OH)₂

c)

Mg OH₂

124.

If a solution is basic which ion will be more present?

a)

H+

b)

K+

c)

OH-

d)

H-

125.

Which of the following is a strong acid?

a)

oxalic acid

b)

nitric acid

c)

carbonic acid

d)

acetic acid

126.

Taste bitter

a)

acids

b)

bases

c)

neutral

d)

pH paper

127.

Name the following ionic compound: MgSO₄·7H₂O

a)

magnesium sulfate * hexahydarte

b)

magnesium sulfate hexahydarte

c)

magnesium sulfate heptahydrate

d)

magnesium sulfate* heptahydrate

128.

Na₂CO₃ · 10H₂O is known as sodium sulfate ______

a)

Hydroxide

b)

Hydrate

c)

Decahydrate

d)

None of the above

129.

A compound is a hydrate when it...

a)

is composed of only hydrogen and oxygen

b)

is a state of water

c)

traps water inside of the compound

d)

repels water from the compound

130.

Name the salt produced when reacting potassium hydroxide and phosphoric acid?

a)

Potassium chloride

b)

potassium nitrate

c)

potassium sulfate

d)

potassium phosphate

131.

What is the colour of hydrated Copper (II) sulphate?

a)

White

b)

Blue

c)

Pink

d)

Brown

132.

Which Salt is form with the following acid- Sulfuric Acid

a)

Chloride

b)

Sulfate

c)

Nitrate

133.

Which Salt is form with the following acid- Nitric Acid

a)

Chloride

b)

Sulfate

c)

Nitrate

134.

Salt of Mg

a)

Gypsum

b)

Epsom

c)

rock salt

d)

Galuber's salt

135.

Common name of FeSO4.7H2O

a)

Ferrous sulphate

b)

washing soda

c)

baking soda

d)

green vitriol

136.

Hydrocarbons are compounds that contain

a)

Carbon and Nitrogen

b)

Carbon and Hydrogen

c)

Carbon, and Oxygen

d)

Carbon, Oxygen, and Hydrogen

137.

How many carbon atoms are in methane?

a)

1

b)

2

c)

3

d)

4

138.

Name this alkane

a)

Methane

b)

Ethane

c)

Propane

d)

Butane

139.

The formula of Acetic acid is

a)

CH₃COH

b)

C₂H₂COOH

c)

CH₃COOH

d)

HCOOCH₃

140.

Name this compound...

a)

methane

b)

methene

c)

methanol

d)

methoxymethane

141.

Dinitrogen oxide

a)

N2O

b)

NO

c)

N2O5

d)

NO2

142.

KClO3

a)

potassium chlorate

b)

potassium chloride

c)

potassium hypo chlorite

d)

potassium perchlorate

143.

[Zn(NH3)4]SO4

a)

Zinc ammonium sulphate

b)

Tetra ammonium Zinc sulphate

c)

Tetra amine zinc sulphate

d)

Ammonium zinc sulphate

144.

Who suggested the idea of representing elements with symbols

a)

John Dalton

b)

James Chadwick

c)

Berzelius

d)

William crookes

145.

A symbol represents a short form of a/an ______________

a)

Atom

b)

Molecule

c)

Element

d)

Compound

146.

Which compound has the formula C3H8

a)

Propane

b)

Ethanol

c)

Butane

d)

Methane

147.

Which one is not a example of hydrocarbon

a)

Methane

b)

Ethanol

c)

Propane

d)

Butane

148.

Blue vitriol is a pentahydrate

a)

TRUE

b)

FALSE

149.

Sulphur in iron [ll] sulphide is insoluble in which solvent

a)

H2O

b)

KBr

c)

H2SO4

d)

CS2

150.

Fe + ________ -----> FeCl2 + H2

a)

2HCl

b)

4HCl

c)

HCl

d)

4Cl

151.

What is the valency of nitrogen in N2O

a)

-2

b)

+1

c)

4

d)

-3

152.

What is the molecular weight of sulphur dioxide (SO2)

a)

46 a.m.u

b)

60 a.m.u

c)

64 a.m.u

153.

Name three metals whose symbols are derived from their Latin names

a)

Potassium

b)

Lead

c)

Lithium

d)

Silver

154.

Which of these is not a monoatomic element

a)

Potasium

b)

Calcium

c)

Ammonium

d)

Lithium

155.

Which of the following exhibits variable valency

a)

mercury

b)

Uranium

c)

Stannous

d)

Platinum

156.

What is the formula for tetra amine copper(II)sulphate

a)

[Ag(NH3)2]Cl

b)

[Cu(NH3)4]SO4

c)

[Zn(NH3)4]SO4

157.

Ignore the (+) and (-) sign on each symbol

a)

TRUE

b)

FALSE

158.

Variable valency is exhibited, since electrons are lost from an element from the ________________ shell

a)

Penultimate

b)

Valence

c)

Electrovalent

d)

Inner

159.

Compounds are always ____________ in nature

a)

Homogeneous

b)

Heterogeneous

c)

Neutral

160.

A chemical equation does not tell us about ______________

a)

Concentration

b)

Nature

c)

Direction

d)

State of matter

161.

Give the valency of carbide

(a)

162.

Valency of MnO4

a)

-1

b)

+3

c)

-2

d)

+2

163.

State which of the following is a radicle

a)

Magnesium

b)

Ammonium

c)

Zinc

d)

Peroxide

164.

Symbol of potassium is

a)

Pb

b)

Na

c)

Fe

d)

K

165.

Correct method of representing a symbol of an element is

a)

BE

b)

he

c)

al

d)

Cr

166.

This element is octatomic?

a)

Nitrogen

b)

Oxygen

c)

Carbon

d)

Sulphur

167.

The valency of sulphate ion is

a)

2-

b)

2+

c)

3-

d)

3+

168.

Washing soda is the common name of

a)

Na2CO3.10 H2O

b)

NaHCO3

c)

Na2SO4

d)

Na3PO4

169.

What is the colour of silver?

a)

Yellow

b)

Blue

c)

Brown

d)

Gray

170.

The formula of Aluminium ion is

a)

Al⁺³

b)

Al⁺¹

c)

Al⁺²

d)

Al°

171.

The formula of Bromide ion is

a)

Br¹⁻

b)

Br⁺¹

c)

Br⁺²

d)

Br⁻²

172.

The symbol of Calcium is

a)

Ca⁺²

b)

Ca

c)

Cl⁺¹

d)

Ca¹⁻

173.

The formula of Carbonate ion is

a)

CO3¹⁻

b)

CO3⁻²

c)

CO2

d)

CO⁻²

174.

The formula of Chloride ion is

a)

Cl¹⁻

b)

Ch¹⁻

c)

Cr

d)

Cl²⁻

175.

The symbol of Copper is

a)

C

b)

Cp

c)

Co

d)

Cu

176.

The formula of dichromate ion is

a)

DCr

b)

DCrO3

c)

Cr2O7⁻²

d)

No answer

177.

The formula of hydride ion is

a)

Hy

b)

H¹⁻

c)

Hd

d)

H

178.

The symbol of Hydrogen is

a)

Hy

b)

H¹⁻

c)

Hd

d)

H

179.

The formula of Iodide ion is

a)

I

b)

I¹⁻

c)

Id

d)

Io

180.

The symbol of Iron is

a)

I

b)

Ir

c)

F

d)

Fe

181.

The symbol of Magnesium is

a)

M

b)

Ma

c)

Mn

d)

Mg

182.

The formula of Nitrate ion is

a)

NO3¹⁻

b)

NO3°

c)

NO2

d)

NO⁻²

183.

The formula of Nitride ion is

a)

N³⁻

b)

N¹⁻

c)

N⁺³

d)

H¹⁻

184.

The formula of Oxide ion is

a)

O

b)

O⁻²

c)

Ox

d)

Ox¹⁻

185.

The formula of posphate ion is

a)

PO₄⁺³

b)

PO₄⁻³

c)

PO⁻

d)

P⁻

186.

The symbol of Silver is

a)

Ag

b)

S

c)

Si

d)

Sl

187.

The symbol of Sodium is

a)

S

b)

So

c)

SO

d)

Na

188.

The formula of sulphate is

a)

SO₄⁺³

b)

SO₄⁻²

c)

SO⁻

d)

S⁻

189.

The formula of sulphide is

a)

S

b)

Sl

c)

Sd

d)

S⁻²

190.

The symbol of Zinc is

a)

Zi

b)

Zc

c)

Z

d)

Zn

symbols and valencies

Total questions: 190

Worksheet time: 2hrs 36mins

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