wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Y10 CS EOY_Chem

Total questions: 150

Worksheet time: 3hrs 52mins

Name
Class
Date
1.

Which of the following is true about compounds?

a)

They are made of one element combined in a fixed ratio by weight.

b)

They have the same properties as the elements they are made of.

c)

They are formed when two or more elements combine with one another by chemically bonding.

d)

They are always in the gaseous state.

2.

What is the elemental form of hydrogen represented by?

a)

H

b)

H2

c)

H2O

d)

O2

3.

What is the formula for a water molecule?

a)

H2

b)

O2

c)

CO2

d)

H2O

4.

Which particle contains most electrons ?

a)

O3-

b)

Ne

c)

Na-

d)

Mg3+

5.

In an atom, what is the number of protons equal to?

a)

The number of electrons

b)

The number of neutrons

c)

The number of nuclei

d)

The number of molecules

6.

Particles in an atom that are neutral and have no charge are

a)

negatrons

b)

protons

c)

neutrons

d)

electrons

7.

Which element exists as a macromolecule ?

a)

Oxygen

b)

Carbon

c)

Sodium

d)

Hydrogen

8.

Which statement is not correct ?

a)

Ammonia is a compound.

b)

Methane is a compound.

c)

Air is a mixture.

d)

Sea water is a compound.

9.

Which substance, when molten, conducts electricity ?

a)

bitumen

b)

caesium iodide

c)

diamond

d)

sand

10.

Which of these does not exist as a diatomic molecule ?

a)

Neon

b)

Chlorine

c)

Hydrogen

d)

Oxygen

11.

Which terms means...

the number of protons in the nucleus of an atom and the number is the same for all atoms of the same elements

a)

average atomic mass

b)

atomic number

c)

electron cloud

d)

chemical symbol

12.

Which terms means...

in chemistry, a horizontal row of elements in the periodic table

a)

period

b)

group

c)

periodic table

d)

chemical symbol

13.

How many different atoms are there in a compound?

a)

1

b)

always 2

c)

two or more

d)

at least three

14.

The state of matter where the particles are spread out as far as possible is

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

15.

The state of matter where the particles have no set volume and no set shape is

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

16.

The phase change where matter changes from solid to liquid is

a)

Freezing/ Solidifying

b)

Melting

c)

Evaporation

d)

Condensation

17.

This is a visualization of an

a)

Solid

b)

Liquid

c)

Gas

18.

How does temperature impact the rate of diffusion in a substance?

a)

Temperature decreases the rate of diffusion by slowing down particle movement

b)

Temperature has no impact on the rate of diffusion

c)

Temperature causes diffusion to occur in the opposite direction

d)

Temperature impacts the rate of diffusion by increasing the kinetic energy of particles, leading to faster diffusion.

19.

What factors can influence the speed of diffusion in a solution?

a)

Time, shape, and texture

b)

Pressure, color, and volume

c)

Temperature, concentration gradient, molecular size, and medium

d)

Density, taste, and odor

20.

Discuss the concept of diffusion in gases versus diffusion in liquids.

a)

Diffusion in gases is slower than diffusion in liquids due to the lower kinetic energy in gases.

b)

Diffusion in gases is faster than diffusion in liquids due to the higher kinetic energy and greater space between particles in gases.

c)

Diffusion in gases is faster than diffusion in liquids due to the lower kinetic energy in gases.

d)

Diffusion in gases is slower than diffusion in liquids due to the greater space between particles in gases.

21.

In what direction does a gas diffuse?

a)

From a low concentration to high concentration

b)

From a high concentration to low concentration

c)

Where ever they want, they are gases

d)

Gases don't diffuse, they stay in one location

22.

How many oxygen atoms have equal mass with two magnesium atoms?

[RAM: O, 16; Mg, 24]

a)

2

b)

3

c)

4

d)

5

23.

Silica gel contains a sodium compound with the formula Na2Si4Oy. If the relative formula mass of the compound is 302, what is the value of y?

[RAM: O, 16; Na, 23; Si, 28]

a)

8

b)

9

c)

10

d)

12

24.

When thermal energy is decreased in a liquid and freezing occurs, what state of matter does the liquid change into?

a)

Gas

b)

Solid

25.

How does the density of a substance affect the rate of diffusion?

a)

Higher density increases the rate of diffusion

b)

Lower density increases the rate of diffusion

c)

Density has no effect on the rate of diffusion

d)

Density decreases the rate of diffusion

26.

Which is a halogen?

a)

Helium

b)

Chlorine

c)

Oxygen

d)

Calcium

27.

Down the group 1, reactivity of metals increases

a)

True

b)

False

28.

Which elements are colored red?

a)

nonmetals

b)

metals

c)

metalloids

29.
How many neutrons are in a Gold atom?
a)
79
b)
196
c)
118
d)
275
30.

Which element conducts electricity the best?

a)

Silicon

b)

Fluorine

c)

silver

d)

Arsenic

31.
a)
Periods
b)
Groups
32.
C (6)
a)
2,5
b)
2,6
c)
2,4
d)
2,7
33.
Write the symbol for Chlorine
a)
Cl
b)
C
c)
Co
d)
Cr
34.

Which of the following is the electronic Configuration of Sodium

a)

2,8

b)

2,8,1

c)

2,1,8

d)

8,1,2

35.

An atom has atomic number 4 the number of electrons in its outermost orbit will be ?

a)

2

b)

6

c)

4

d)

1

36.
Which elements have the most similar chemical properties?
a)
K and Na
b)
K and Ca
c)
K and Cl
d)
K and S
37.
The period for Bromine is ___________.
a)
3
b)
2
c)
4
38.

Which of these is a distinguishing property for the noble gases?

a)

Soft - can cut with a plastic knife

b)

Unreactive - don't give or receive electrons

c)

Shiny - exhibits luster

d)

Poor conductors of electricity

39.

Which of these is a distinguishing property for the nonmetals?

a)

Soft - can cut with a plastic knife

b)

Unreactive - don't give or receive electrons

c)

Shiny - exhibits luster

d)

Poor conductors of electricity

40.
An atom is electrically neutral when
a)

protons and neutrons are the same

b)

protons and electrons are the same

c)

neutrons and electrons are the same

41.
How is carbon-12 different from carbon-14?
a)
They have a different number of protons
b)
they have a different number of electrons
c)
they have a different number of neutrons
42.

Isotopes of an element have a different number of...

a)

Protons

b)

Neutrons

c)

Electrons

43.

By studying the picture, you can determine that Carbon-13 has ____ protons.

a)

6

b)

13

c)

12

d)

14

44.
A cation is a ____ ion.
a)
negative
b)
positive
c)
neutral
d)
ficticious
45.
A anion will be a ____ ion.
a)
negative
b)
positive
c)
neutral
d)
ficticious
46.

Nitrogen, N, will form which of the following ions?

a)

N

b)

N-3

c)

N-5

d)

N+5

47.
Write the formula for barium + nitrogen
a)
Ba2N3
b)
Ba3N2
c)
BaN
d)
BaN3
48.
Write the correct chemical formula for Ag +  and  Br -
a)
AgBr
b)
silver bromide
c)
Ag2Br2
d)
gold bromide
49.
Which is the correct name for CaBr2?
a)
Calcium Bromine
b)
Bromine Calcium
c)
Calcium Bromide
50.
Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?
a)
There are 2 bromide ions for every magnesium ion
b)
Bromide has a 2- charge
c)
Bromide has a 2+ charge
d)
There are 2 magnesium ions to every bromide ion
51.

Which of the following is NOT a property of ionic compounds?

a)

They conduct electricity when molten

b)

They conduct electricity when in solution

c)

They have high boiling points

d)

They are insoluble in water

52.
In what form can an ionic compound conduct electricity?
a)
when dissolved in water
b)
as a solid
c)
as a crystal
d)
when warmed slightly
53.
What is the formula of Sodium oxide?
a)
Na2O
b)
NaO2
c)
Na2O2
d)
Na2O
54.
An ionic bond is the attraction between:
a)
oppositely charged ions
b)
similarly charged ions
c)
neutral ions
d)
neutral atoms
55.
An ionic bond results due to the __________ attraction between 2 oppositely charged ions.
a)
delocalized
b)
weird
c)
electrostatic
d)
ionization
56.

Carbon and Oxygen will make a ___________ bond.

a)

ionic

b)

covalent

c)

metallic

57.

MgO

a)

ionic

b)

covalent

c)

metallic

58.

Sodium and Bromine will make a _____ bond.

a)

ionic

b)

covalent

c)

metallic

59.

Nitrogen and Oxygen will make a ____________ bond

a)

ionic

b)

covalent

c)

metallic

60.

When a metal loses electrons, it becomes this type of ion.

a)

anion

b)

cation

61.

Is this compound ionic or covalent?

a)

ionic

b)

covalent

62.

Which of the following proton numbers belongs to an element that does not form chemical bonds?

a)

8

b)

12

c)

18

d)

20

63.

The cation Rb+ has

a)

Had nothing happen to it

b)

Gained 1 electron

c)

Lost 1 electron

d)

Become negative

64.

The electron configuration of Nitrogen is

a)

0, 2, 5

b)

N, 2, 5

c)

7

d)

2, 5

65.

An element with the electron configuration 2, 1 is in which group number?

a)

1

b)

2

c)

3

d)

4

66.

Electrons repel each other and move frantically in their shells because

a)

Their positive charges repel

b)

Their negative charges attract

c)

Their negative charges repel

d)

Their positive charges attract

67.
Hydrogen needs _____ electrons in its valence shell to be stable.
a)
4
b)
6
c)
8
d)
2
68.
How many covalent bonds does carbon need to form in order to have a full octet?
a)
2
b)
3
c)
4
d)
5
69.
Covalent compounds
a)
Share electrons
b)
transfer electrons
c)
contain a sea of electrons
d)
conduct electricity
70.
What is a diatomic element?
a)
a metal bonded with a nonmetal
b)
2 or more nonmetals bonded together
c)
2 or more metals bonded together
d)
2 atoms of the same element bonded together
71.

Which structures conduct electricity as a liquid but not as a solid?

a)

Metallic

b)

Covalent

c)

Ionic

d)

All of the above

72.

Which structure has a sea of free electrons?

a)

Ionic

b)

Covalent

c)

Metallic

d)

All of the above

73.

An atom with 3 valence electrons "wants" a full shell, so it can either gain 5 or lose 3. Which is more likely to occur?

a)

Gain 5

b)

Lose 3

c)

Nothing

74.
Why do elements bond?
a)
To be friends
b)
To create a new element
c)
To become stable
75.
Covalent bonds are between...
a)
Metal and Non-metal
b)
Non-metal and Non-metal
c)
Metal and Metal
76.

Example of giant molecule

a)

carbon dioxide

b)

Silicon dioxide

77.

Why ionic compounds are not volatile? Because they ...................

a)

have high melting and boiling points

b)

have low melting and boiling points

78.

Example of simple molecule

a)

Carbon dioxide

b)

Silicon dioxide

79.

Which substance has the weakest intermolecular forces?

a)

Substance A, boiling point of 75 °C

b)

Substance B, boiling point of 105 °C

c)

Substance C, boiling point of 25 °C

d)

Substance d, boiling point of 45 °C

80.

The weaker the intermolecular forces of a substance the _____________ the boiling point

a)

higher

b)

lower

81.

Which has weak intermolecular forces in between layers?

a)

graphite

b)

diamond

c)

fullerene

d)

none of these

82.
Which has every carbon atom covalently bonded to four other atoms?
a)
graphite
b)
diamond
c)
fullerene
d)
none of these
83.
Conduct electricity
a)
diamond
b)
graphite
c)
both
84.

_____ can conduct electricity because it has _____ _____

a)

diamond

b)

graphite

c)

localised electrons

d)

delocalised electrons

85.

Diamond is used for cutting glass because it is

a)

hard and strong

b)

soft

c)

shiny

d)

unreactive

86.

what charge do the metal ions have in metallic bonding?

a)

negative

b)

positive

c)

neutral

87.

what one word describe the electrons in metallic bonding

(a)  

88.

The force of attraction between a metal ion and surrounding electrons is a(n)

(a)  

89.

Which of the following would have the lowest melting point?

a)

MgCl2

b)

Al2O3

c)

CO2

d)

AlP

90.

Which of the following pairs of elements would NOT react to form an IONIC compound?

a)

sulfur and phosphorus

b)

sodium and iodine

c)

iron and oxygen

d)

aluminum and bromine

91.

The diagram shows metallic bonding.


Which labels are correct?

a)

X: atomic nucleus

Y: outer electron

b)

X: metal atom

Y: mobile electron

c)

X: metal cation

Y: mobile electron

d)

X: positive ion

Y: negative ion

92.

Why do metals conduct electricity?

a)

Metals have shiny surface

b)

Metals have tightly held electrons

c)

Metals have delocalised electron that are able to move

d)

Metals have shared electron between two metal ions

93.

The relative formula mass, Mr, of calcium carbonate, CaCO3, is 100.


What is the mass of carbon present in 100 g of calcium carbonate?

a)

12 g

b)

40 g

c)

36 g

d)

60 g

94.

The compound magnesium nitrate has the formula Mg(NO3)2.


What is the relative formula mass of magnesium nitrate?

a)

86

b)

134

c)

148

d)

172

95.

Propane burns in oxygen.


C3H8 + xO2 → 3CO2 + yH2O


Which values of x and y balance the equation?

a)

x = 5, y = 4

b)

x = 7, y = 4

c)

x = 10, y = 8

d)

x = 13, y = 8

96.

CaCO3 --> CaO + CO2

a)

A

b)

B

c)

C

d)

D

97.
a)

A

b)

B

c)

C

d)

D

98.
 SiO2 + 3C → SiC + 2CO
I need to add 8 moles of Carbon to the reaction. How many grams of Carbon should I weigh?
a)
96 g
b)
0.67 g
c)
2.67 g
d)
48 g
99.
Using the following equation:
4NH3(g) + 5O2(g) --> 4NO(g) + 6H2O(l)
How many grams of oxygen gas are needed to react with 56.8 grams of ammonia?
a)
45.08 g O2
b)
133.33 g O2
c)
260.77 g O2
d)
75.92 g O2
100.

What is the formula for calculating molar volume?

a)

Molar volume = Molar mass - Density

b)

Molar volume = Molar mass / Density

c)

Molar volume = Molar mass + Density

d)

Molar volume = Molar mass * Density

101.

What is the formula for calculating concentration?

a)

Amount of solute - Volume of solution

b)

Amount of solute / Volume of solution

c)

Amount of solute + Volume of solution

d)

Amount of solute * Volume of solution

102.

What volume of hydrogen will be produced at RTP by the reaction 67.3 g of magnesium with excfess water according to the following reaction?

1Mg + 2H2O --> Mg(OH)2 + H2


Ar values: Mg=24.3, H=1, O=16

a)

66.5 dm3

b)

65 dm3

c)

31 dm3

d)

124 dm3

103.

How many moles of methane gas molecules, CH 44  , are in 12 dm 33   of methane at Room temperature and pressure?

a)

11.2 moles

b)

0.5 moles

c)

179.2 moles

d)

27.2 moles

104.

Rubidium is in Group I of the Periodic Table and bromine is in Group VII.

Rubidium reacts with bromine to form an ionic compound.

Which row shows the electron change taking place for rubidium and the correct formula of the rubidium ion?

a)

A

b)

B

c)

C

d)

D

105.

Lithium is in Group I of the Periodic Table. Nitrogen is in Group V of the Periodic Table.

Lithium reacts with nitrogen to form the ionic compound lithium nitride.

What happens to the electrons when lithium atoms and nitrogen atoms form ions?

a)

A

b)

B

c)

C

d)

D

106.

Which of the following chemical equations is correct for the word equation:

Solid magnesium is burned in oxygen gas to produce solid magnesium oxide.

a)

Mg + O2→ MgO (aq)

b)

Mg+ O→ MgO (s)

c)

Mg + CO2 → MgO (s) + C

d)

Mg + O2→ MgO (s)

107.

Solid sodium reacts with chlorine gas to produce sodium chloride crystals.

a)

NaCl (s)→ Cl(g) + Na(s)

b)

Na (s)+ CO2 (g)→ NaCO2 (s)

c)

Na (s) + Cl2 (g)→ NaCl (s)

d)

Na (g) + Cl (s) → NaCl (s)

108.
What is the name of the positive electrode?
a)
cathode
b)
anode
109.

The negatively charged ions are attracted to the ________.

a)

anode

b)

cathode

110.

Anions get discharged by ________ electrons at the ___________

a)

gaining, cathode

b)

losing, anode

c)

gaining, anode

d)

losing, cathode

111.

What is the gas produced at the anode during the electrolysis of very dilute hydrochloric acid?

a)

water

b)

oxygen

c)

hydrogen

d)

chlorine

112.

Choose the half-equation that shows the discharge of aluminium ion.

a)

Al3+ - 3e- --> Al

b)

Al2+ + 3e- --> Al

c)

Al3+ + 3e- --> Al

d)

Al3+ --> Al + 3e-

113.

What is the half-equation for the discharge of hydroxide ions?

a)

2O2- --> O2 + 4e-

b)

OH- --> OH + e

c)

4OH- --> 2H2O + O2 + 4e-

d)

2H2O + O2 + 4e- --> 4OH-

114.

What ions are present in molten aluminium oxide?

a)

Al3+, O2-, H+, OH-

b)

Al3+, O2-

c)

Al3+, OH-

115.

Using reactivity series of metals, which of the following metals is the least reactive ?

a)

Potassium

b)

Aluminium

c)

Iron

d)

Gold

116.

Which substance does NOT produce a gas at both electrodes during electrolysis?

a)

concentrated aqueous sodium chloride

b)

concentrated hydrochloric acid

c)

dilute sulfuric acid

d)

molten lead(II) bromide

117.
Explain why the electrolyte has to be a liquid.
a)
So the ions can move
b)
So the electrons can move
c)
So that it doesn't get too hot
d)
So the fish are ok
118.
What is the name given to the solution that is being electrolysed?
a)
Salt solution
b)
Electric solution
c)
Mineral solution
d)
Electrolyte
119.
What is the equation to show what happens to Cl ions at the anode.
a)
Cl- --> Cl + e-   
b)
2Cl- --> Cl2 + 2e-   
c)
Cl2 + 2e-   2Cl- 
d)
Cl2 + 2e-  -->  2Cl- 
120.

The diagram shows that two gases are formed when concentrated hydrochloric acid is electrolysed between inert electrodes.

a)

A

b)

B

c)

C

d)

D

121.

Oxidation is the _________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

122.

Reduction is the ___________ of electrons.

a)

loss

b)

gain

c)

sharing

d)

transfer

123.
A hydrogen ion has a ____ charge.
a)
positive +
b)
negative -
124.

What does a Hydrogen fuel cell combine with to make water?

a)

Hydrogen peroxide and oxygen.

b)

Water and heat.

c)

Hydrogen gas & oxygen gas

d)

Hydrogen and O

125.
a)

A

b)

B

c)

C

d)

D

126.
a)

A

b)

B

c)

C

d)

D

127.
a)

Ethanol has a higher boiling point than water.

b)

Ethanol has a lower melting point than water.

c)

Ethanol has a higher melting point than water.

d)

Ethanol has a lower boiling point than water.

128.
a)

A

b)

B

c)

C

d)

D

129.
a)

A

b)

B

c)

C

d)

D

130.
a)

A

b)

B

c)

C

d)

D

131.

Answer the question

a)

D

b)

B

c)

A

d)

C

132.

What is the uses of apparatus on pictures?

a)

measuring of mass

b)

measuring of temperature

c)

measuring of gas

d)

measuring of volume

133.

what is name of apparatus on picture?

a)

measuring pipette

b)

beaker glass

c)

measuring cylinder

d)

funnel

134.

Test for ammonia (NH3)

a)

turns damp, red litmus paper blue

b)

turns limewater milky

c)

'pops' with a lighted splint

d)

damp blue litmus paper turns red, then bleach to white

e)

relights a glowing splint

135.

Test for carbon dioxide (CO2)

a)

turns damp, red litmus paper blue

b)

turns limewater milky

c)

turns acidified aqueous potassium manganate(VII) from purple to colourless

d)

damp blue litmus paper turns red, then bleach to white

e)

relights a glowing splint

136.

Test for chlorine (Cl2)

a)

turns damp, red litmus paper blue

b)

turns limewater milky

c)

'pops' with a lighted splint

d)

damp blue litmus paper turns red, then bleach to white

e)

relights a glowing splint

137.

Test for hydrogen (H2)

a)

turns damp, red litmus paper blue

b)

turns limewater milky

c)

'pops' with a lighted splint

d)

damp blue litmus paper turns red, then bleach to white

e)

relights a glowing splint

138.

Test for oxygen (O2)

a)

turns damp, red litmus paper blue

b)

turns limewater milky

c)

turns acidified aqueous potassium manganate(VII) from purple to colourless

d)

damp blue litmus paper turns red, then bleach to white

e)

relights a glowing splint

139.

I am left behind in the filter paper ]. What Am I?

a)

Filtrate

b)

Solution

c)

Residue

140.

The impurities such as sugar or salt will _____________________________________ the boiling point of the water.

a)

increase

b)

remain the same

c)

decrease

141.

Saltwater solution was separated using a simple distillation set-up. Identify the distillate.

a)

water only

b)

salt only

c)

saltwater

142.

Name number 2 on the diagram using the keywords!

a)

Filter funnel

b)

Filtrate

c)

Filter paper

d)

Residue

143.

What is the filtration method used for?

a)

To separate a liquid from a gas

b)

To separate a liquid from a solid

c)

To separate a liquid from a liquid

d)

To separate a solid from a solid

144.

Which separation technique is used to obtain salt from seawater?

a)

Simple distillation

b)

Filtration

c)

Chromatography

d)

Evaporation

145.

What is this piece of apparatus called

a)

Pipette

b)

Burette

c)

Janette

d)

Cuvette

146.

Why do we perform a titration?

a)

To determine the concentration of an unknown solution

b)

To see if a reaction will occur between an acid and base

c)

To find the mass of an unknown acid

d)

To find the molar mass of an unknown solution

e)

To calculate the viscosity of the solution

147.

The pipette is used to

a)

measure volume of solution

b)

hold the solution

c)

accurately measure volume of solution

d)

measure the mass of solution.

148.
NaOH is added to an unknown solution. A blue ppt forms. The formula of the ion is:
a)
Fe
b)
Fe3+
c)
Fe2+
d)
Cu2+
149.

A solution contains chloride ions.

Dilute nitric acid and aqueous silver nitrate were added to the solution.

Observation: ___________________.

a)

yellow precipitate formed

b)

white precipitate formed

c)

cream precipitate formed

d)

no reaction

150.

What compound gives off pinkish red color when heated over a flame?

a)

Lithium

b)

Strontium

c)

Potassium

d)

Calcium

Similar Resources on Wayground

ACP Chemistry Final Exam Review

153 questions

ACP Chemistry Final Exam Review

quiz

Worksheet

•

10th Grade

End of Year Review

150 questions

End of Year Review

quiz

Worksheet

•

10th Grade

Chemical Reactions

155 questions

Chemical Reactions

quiz

Worksheet

•

9th - 12th Grade

(H) Semester (II) Review

150 questions

(H) Semester (II) Review

quiz

Worksheet

•

10th Grade

Chem 1 Honors Final Exam Review

147 questions

Chem 1 Honors Final Exam Review

quiz

Worksheet

•

9th - 12th Grade

Chemistry Midterm Review

152 questions

Chemistry Midterm Review

quiz

Worksheet

•

10th Grade

✅Unit 1 Study Guide

150 questions

✅Unit 1 Study Guide

quiz

Worksheet

•

9th - 12th Grade

01 QT-LS- ĐL

150 questions

01 QT-LS- ĐL

quiz

Worksheet

•

10th - 12th Grade