wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

year 10 term 1 revision Chemistry

Total questions: 99

Worksheet time: 2hrs 29mins

Name
Class
Date
1.

The Group 1 elements form:

a)

1+ ions

b)

2+ ions

c)

1- ions

d)

2- ions

2.

An atom of calcium loses two electrons to form a...

a)

Ca+ ion

b)

Ca2+ ion

c)

Ca- ion

d)

Ca2- ion

3.

Ionic bonding involves

a)

sharing of electrons

b)

transfer of electrons

4.

Covalent bonding involves

a)

transfer of electrons

b)

sharing of electrons

5.

Ionic bonding happens between...

a)

a metal and a metal

b)

a metal and a non-metal

c)

a non-metal and a non-metal

6.

Which of the following best describes the arrangement of particles in a solid?

a)

The particles are arranged randomly and none are touching.

b)

The particles are arranged randomly and are all touching.

c)

The particles are arranged regularly and none are touching.

d)

The particles are arranged regularly and are all touching.

7.

Which of the following best describe freezing?

a)

Particles in a solid start to change into a gas.

b)

Particles in a solid start to change into a liquid.

c)

Particles in a gas start to change into a liquid.

d)

Particles in a liquid start to change into a gas.

8.

When a substance changes from a solid to a liquid what is the name of the process?

a)

Evaporation.

b)

Boiling.

c)

Melting.

d)

Sublimation.

9.

Some magnesium chloride powder is dissolved in distilled water. Which of the following sentences is correct?

a)

The magnesium chloride is a solute, the distilled water is the solvent and together they form a magnesium chloride solution.

b)

The magnesium chloride is a solvent, the distilled water is the solvent and together they form a magnesium chloride solute.

c)

The magnesium chloride is a solute, the distilled water is the solution and together they form a magnesium chloride solvent.

d)

The magnesium chloride is a solution, the distilled water is the solvent and together they form a magnesium chloride solute.

10.

Some students were conducting an experiment to investigate how quickly a gas diffused along a tube. They wanted to change a variable to see how it affected the speed at which the gas diffused. Which of the following would not affect how fast the gas diffused?

a)

The concentration of gas they used.

b)

The temperature of the room they did the investigation in.

c)

The type of gas they used.

d)

The time of day they did the investigation.

11.

Oxygen is one of the gases that make up the air around us. Which of the following describes the arrangement of the particles inside oxygen?

a)

The particles are arranged randomly and none are touching.

b)

The particles are arranged randomly and are all touching.

c)

The particles are arranged in regularly and none are touching.

d)

The particles are arranged in regularly and are all touching.

12.

Which of the following statements about elements is not true?

a)

Elements contain equal numbers of protons and electrons.

b)

Elements contain equal numbers of neutrons and electrons.

c)

Elements contain protons and neutrons in their nucleus.

d)

Elements contain electrons that orbit around the nucleus.

13.

You may need a copy of the periodic table to answer this question. Look at the diagram below. Which element has the electronic structure show?

a)

Carbon

b)

Nitrogen

c)

Oxygen

d)

Sodium

14.

You may need a copy of the periodic table to answer this question.

Which one of the following electronic structures represents potassium?

a)

2,8,2

b)

2,8,8

c)

2,8,8,2

d)

2,8,6,2

15.

You may need a copy of the periodic table to answer this question. How many electrons are there in the outer electron shell of aluminium?

a)

3

b)

6

c)

2

d)

7

16.

A particle has a nucleus that contains 10 protons and around the outside it has 8 electrons. What is the overall charge of the particle?

a)

0

b)

+2

c)

-2

d)

+18

17.

Protons, neutrons and ________ are the three subatomic particles that make up atoms.

a)

neutrinos

b)

up quarks

c)

electrons

d)

positrons

18.

The horizontal rows of the periodic table are called periods. The vertical columns are called...

a)

pillars

b)

groups

c)

families

d)

types

19.

The metals found in this corner of the periodic table are the most reactive.

a)

Top Right

b)

Bottom Right

c)

Top Left

d)

Bottom Left

20.

What is the charge of an anion?

a)

Positive

b)

Negative

c)

Neutral

d)

Anions have layers

21.

The law of conservation of mass states that, in chemical reactions, the mass of reactants = mass of products. (Remember: reactants are input chemicals, products are output chemicals) .

a)

True

b)

False

22.

Which images shows pure elements?

a)

A & B

b)

B & C

c)

C & D

d)

A & D

23.

Which images show compounds?

a)

A & B

b)

B & C

c)

C & D

d)

A & D

24.

How would you best describe image B?

a)

A compound

b)

An element

c)

A mixture

d)

A lattice

25.
How many Protons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
26.
How many Electrons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
27.
How many Protons+Neutrons are in one atom of Lithium?
a)
6.941
b)
7
c)
3
d)
6
28.
Each row in a periodic table is called a 
a)
Group
b)
Period
c)
Row
d)
Column
29.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
30.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
31.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
32.

Name the compound AlBr3

a)

aluminum bromide

b)

aluminum tribromide

c)

aluminum bromine

d)

aluminum boride

33.

Name the compound MgF2

a)

magnesium fluoride

b)

manganese fluoride

c)

magnesium(III) fluoride

d)

magnesium floride

34.

Which statement describes the bonding in sodium chloride?

a)

A shared pair of electrons between two atoms leading to a noble gas configuration.

b)

A strong force of attraction between oppositely charged ions.

c)

A strong force of attraction between two molecules.

d)

A weak force of attraction between oppositely charged ions.

35.

Magnesium, calcium, strontium and barium are Group II elements. Group II elements follow the same trend in reactivity as Group I elements.

Which statement about Group II elements are correct?

1. Calcium reacts faster than magnesium with water.

2. Barium reacts less vigorously than magnesium with dilute acid.

3. Strontium oxidises in air more slowly than barium.

a)

1, 2 and 3

b)

1 and 2 only

c)

1 and 3 only

d)

2 and 3 only

36.

Chlorine, bromine and iodine are elements in Group VII of the Periodic Table.

Which statement about these elements are correct?

a)

The colour gets lighter down the group

b)

The density decreases down the group.

c)

They are all gases at room temperature and pressure.

d)

They are all non-metals.

37.

Which metal compound produces a gas that turn limewater milky when it is heated with a Bunsen burner?

a)

copper(II) carbonate

b)

magnesium nitrate

c)

sodium sulfate

d)

zinc nitrate

38.

What is the dot and cross diagram for a molecule of carbon dioxide?

a)
b)
c)
d)
39.

The diagrams show the structures of two substances used to make electrical conductors.

Which statement correctly describes X and Y?

a)

X is a pure metal and Y is a compound.

b)

X is a pure metal and Y is an alloy.

c)

X is a solid and Y is a liquid.

d)

X is harder and stronger than Y.

40.

Part of the Periodic Table is shown. Which row describes the properties of X, Y and Z?

a)

X is a good conductor of electricity. Z has high melting point.

b)

Y is a good conductor of electricity. Z and X have high melting point.

c)

Y and Z are good conductors of electricity. Z has high melting point.

d)

Z and X are good conductors of electricity. X has high melting point.

41.

The properties of four metals are listed.

1. Metal W does not react with dilute hydrochloric acid.

2. Metal X reacts with dilute hydrochloric acid.

3. Metal Y displaces metal X from an aqueous solution of its ions.

4. Metal Z reacts with water and dilute hydrochloric acid.

What is the order of reactivity of the metals?

a)

Most reactive --> Least reactive

W, X, Y, Z

b)

Most reactive --> Least reactive

W, Y, X, Z

c)

Most reactive --> Least reactive

Z, X, Y, W

d)

Most reactive --> Least reactive

Z, Y, X, W

42.

Which statement is true about a weak alkali?

a)

Partially ionises into hydroxide ions, OH−OH^-   in water.

b)

Completely ionises into hydroxide ions in water. , OH−OH^-  

c)

Partially ionises into hydrogen ions, H+H^+   in water

d)

Completely ionises into hydrogen ions, H+H^+  in water.

43.

What is the total number of electrons in ammonia, NH3NH_3  ?

a)

6

b)

8

c)

10

d)

11

44.

Which of these is/are neutralisation reaction(s)?

1. HCl  + KOH → KCl + H2OHCl\ \ +\ KOH\ \rightarrow\ KCl\ +\ H_2O  

2. MgCO3→MgO + CO2MgCO_{3_{ }}\rightarrow MgO\ +\ CO_2  

3. Zn + H2SO4→ ZnSO4 + H2Zn\ +\ H_2SO_4\rightarrow\ ZnSO_4\ +\ H_2  

4. H2SO4 + CuO → CuSO4 + H2OH_2SO_4\ +\ CuO\ \rightarrow\ CuSO_4\ +\ H_2O  

a)

1, 3 and 4

b)

1 and 3 only

c)

2, 3 and 4

d)

1 and 4 only

45.

When a substance is heated, particles will

a)

Move further apart

b)

Get larger

c)

Move closer together

d)

Be unaffected

46.
Can you separate salt from water using filtration?
a)
yes
b)
no
47.

The atomic mass of an element tells you

a)

The number of protons and neutrons

b)

The number of protons and electrons

c)

The number of neutrons and electrons

d)

The number of neutrons only

48.

The electron configuration of a magnesium ION is

a)

2, 8, 6

b)

2, 8, 8

c)

2, 8, 2

d)

2, 8

49.

Elements from groups 1-3

a)

Are metals and lose electrons in a chemical reaction to become CATIONS

b)

Are metals and lose electrons in a chemical reaction to become ANIONS

c)

Are metals and gain electrons in a chemical reaction to become CATIONS

d)

Are metals and gain electrons in a chemical reaction to become ANIONS

50.

Phosphorus does the following in a chemical reaction

a)

LOSES 3 electrons to become an ANION

b)

LOSES 3 electrons to become a CATION

c)

GAINS 3 electrons to become a CATION

d)

GAINS 3 electrons to become an ANION

51.

Which statement best describes the following species: O2-

a)

This is an oxygen anion. It is called oxygen

b)

This is an oxygen anion. It is called oxide

c)

This is an oxygen cation. It is called oxygen

d)

This is an oxygen cation. It is called oxide

52.

Which statement best describes the following species: Al3+

a)

This is an aluminium cation. It has lost 3 electrons

b)

This is an aluminium cation. It has gained 3 electrons

c)

This is an aluminium anion. It has lost 3 electrons

d)

This is an aluminium anion. It has gained 3 electrons

53.

Write the formula for calcium chloride

a)

CaCl

b)

Ca2Cl

c)

CaCl2

d)

Ca3Cl2

54.

Which of the following statements regarding halogens is true?

a)

Halogens are from group 6. They lose 2 electrons in a chemical reaction

b)

Halogens are from group 7. They gain 1 electron in a chemical reaction.

c)

Halogens are from group 6. They gain 2 electrons in a chemical reaction.

d)

Halogens are from group 7. They lose 1 electron in a chemical reaction.

55.
Identify the general form of all chemical equations.
a)
products → reactants
b)
acid + base → salt + water
c)
reactants → products
d)
metal + water → metal hydroxide + hydrogen
56.

Select the option that best completes the following sentence. The subscripted number 4 in the chemical formula for methane ( CH4CH_4  ) tells us that there are:

a)
4 molecules of CH
b)
4 atoms of carbon in a methane molecule
c)
4 atoms of hydrogen in a methane molecule
d)
4 atoms of methane
57.
Hydrogen chloride (HCl) can be formed by the following reaction: hydrogen + chlorine → hydrogen chloride Identify the symbol equation for this reaction.
a)

2HCl(g)→H2(g)+Cl2(g)2HCl(g)→H_2(g)+Cl_2(g)  

b)

H2(g)+Cl2(g)+2HCl(g)H_2(g)+Cl_2(g)+2HCl(g)  

c)

H2(g)+Cl2(g)→2HCl(g)H_2(g)+Cl_2(g)→2HCl(g)  

d)

H2(g)→Cl2(g)+2HCl(g)H_2(g)→Cl_2(g)+2HCl(g)  

58.
Select the option that best completes the following sentence. The law of conservation of matter states that during any chemical reaction:
a)
a small amount of matter is converted into energy
b)
the number of atoms of each element remains the same
c)
the total number of atoms remains the same but some atoms may switch from one element to another
d)
the total number of molecules remains the same
59.
Sodium metal reacts explosively with water to produce sodium hydroxide and hydrogen gas. Determine which of the following chemical equations is balanced.
a)

Na+H2O→NaOH+H2Na+H_2O→NaOH+H_2  

b)

Na+2H2O→NaOH+H2Na+2H_2O→NaOH+H_2  

c)

Na+H2O→NaOH+2H2Na+H_2O→NaOH+2H_2  

d)

2Na+2H2O→2NaOH+H22Na+2H_2O→2NaOH+H_2  

60.

Examples of indicators :

a)

Litmus paper

b)

Universal indicator

c)

Phenolphthalein

d)

All of them

61.

The chemical reaction between acid alkali is called ...

a)

Pasteurization

b)

Precipitation

c)

Neutralization

d)

non of them

62.

When sometihng is burned it reacts with ........

a)

Carbon dioxide

b)

Oxygen

c)

Magnesium

d)

gold

63.
Which is the best definition for an ion?
a)
An atom has a net charge greater or less than zero.
b)
An ion has the same number of electrons as an atom of the same element.
c)
An ion has a net charge greater or less than zero.
d)
There is no difference
64.
Which of the following is not an example of a chemical reaction
a)
burning of wood
b)
freezing of water
c)
rotting of fruit
d)
explosion of dynamite
65.
Name the elements in
NaHCO3
a)
sodium, hydrogen, carbon, oxygen
b)
sulfur, hydrogen, cobolt
c)
sodium, hydrogen, cobolt
d)
sulfur, hydrogen, carbon trioxide
66.

A mixture of water (b.p. 100oC) and alcohol (b.p. 78oC) is separated. Which will be found in 8 first?

a)

water

b)

ethanol

67.

What is 5?

a)

cooling tube

b)

condenser

c)

distillate

d)

water pump

68.
Which of the following is an example of an IONIC COMPOUND?
a)
NaCl
b)
H2O
c)
CO2
d)
NO
69.
The periodic table is organized going across left to right  <---> by?
a)
increasing Atomic #
b)
Increasing Mass #
c)
None of the above
70.

The diagram shows a circuit. Solid X makes the lamp light. What is solid X?

a)

Copper

b)

Rubber

c)

Silicon (IV) oxide

d)

Sulphur

71.

Dilute sulphuric acid is added to antacid tablets in the apparatus shown.


The limewater turns milky. What do the antacid tablets contain?

a)

Magnesium

b)

Magnesium carbonate

c)

Magnesium hydroxide

d)

Magnesium oxide

72.

A student uses the apparatus shown to find out how many different pigments are in leaves.


What is this separation method called?

a)

Chromatography

b)

Distillation

c)

Filtration

d)

Evaporation

73.

A pupil wants to find out if the reaction of 25 cm3 of an acid with 25 cm3 of an alkali is exothermic.


Which two pieces of apparatus are needed?

a)

balance and measuring cylinder

b)

Bunsen burner and measuring cylinder

c)

Bunsen burner and thermometer

d)

thermometer and measuring cylinder

74.

Which would be a liquid at 50 °C?

a)

A

b)

B

c)

C

d)

D

75.

Which statement explains how oxides of nitrogen are formed in a car engine?

a)

Nitrogen in the air reacts with the fuel.

b)

Oxygen and nitrogen in the air react together.

c)

Oxygen in the air reacts with nitrogen impurities in the fuel.

d)

Oxygen in the air reacts with the fuel.

76.

Henna is a dye extracted from a plant. Which apparatus is used to show henna is a mixture of different colours?

a)

A

b)

B

c)

C

d)

D

77.
Chlorine is
a)
Colourless gas
b)
Green gas
c)
Orange liquid
d)
Grey solid
78.
What is the RFM/ Mr of CaCO3
a)
88
b)
100
c)
116
d)
43
79.

Damp red litmus paper turning blue is a positive test for which gas?

a)

hydrogen

b)

oxygen

c)

carbon dioxide

d)

ammonia

e)

chlorine

80.

Which of the following is NOT a covalent bond?

a)

K2S

b)

H2O

c)

I2

d)

CO2

81.

Isotopes have...

a)

same number of p+ and e-, different number of n0

b)

same number of p+ and n0, different number of e-

c)

same number of e- and n0, different number of p+

d)

same number of p+, n0 and e-

82.

The most reactive element in Group VII is

a)

Fluorine

b)

Chlorine

c)

Iodine

d)

Bromine

83.

Noble gases are very stable because they have _________ outer shells.

a)

All

b)

Empty

c)

Full

d)

No

84.
acid + metal ----->
a)
salt + hydrogen
b)
salt + water + carbon dioxide
c)
salt + water
d)
salt + carbon dioxide
85.
Magnesium + sulphuric acid --> ?
a)
magnesium sulfate + water
b)
magnesium sulfate + hydrogen
c)
magnesium chloride + hydrogen
d)
magnesium chloride + water
86.
What is the chemical formula of calcium carbonate
a)
Ca2CO3
b)
Ca(CO)3
c)
CaCO3
d)
CaCO
87.
What are the products of thermal decomposition of calcium carbonate
a)
calcium oxide only
b)
calcium hydroxide and water
c)
calcium oxide and carbon dioxide
d)
Calcium hydroxide only
88.
How is calcium hydroxide solution produced?
a)
Calcium carbonate and water
b)
Calcium oxide and water
c)
Calcium carbonate and acid
d)
calcium oxide and acid
89.

What is the colour of anhydrous copper sulphate?

a)

Blue

b)

Green

c)

White

d)

bluish green

90.
Which of the following is the most reactive in water?
a)
Lithium
b)
Sodium
c)
Potassium
91.
What is formed when sodium reacts with water?
a)
sodium oxide and hydrogen
b)
sodium hydroxide and hydrogen
c)
sodium hydroxide and oxygen
d)
sodium hydroxide and carbon dioxide
92.

What is the symbol equation for the reaction between Potassium and water?

a)

2K + 2H2O → 2KOH + H2

b)

2Na + 2H2O → 2NaOH + H

c)

2K + H2O → 2KOH + CO2

d)

2Na + 2H2O → 2NaOH + CO2

93.

What happens to the melting point of the alkali metals as you move down the group?

a)

decreases

b)

increases

c)

no change

d)

first increases than decreases

94.
The diagram shows the apparatus for separating soil and water. What are the labelled parts?
a)
A = distillate, B = filtrate
b)
A = filtrate, B = residue
c)
A = residue, B = filtrate
d)
A = residue, B = distillate
95.
What does chlorination do to the water?
a)
Removes microorganisms
b)
Cleans the water
c)
Makes the water taste nice
d)
Removes twigs and sediment
96.

NaCl was heated starting at an initial temperature of 0°C. The heating curve is shown in the picture. What is the melting point of this substance?

a)

0°C

b)

801°C

c)

1000°C

d)

1465°C

97.

How many valence electrons does Lithium (Li) have?

a)

8

b)

1

c)

5

d)

2

98.

Correct diagram for  N2N_2  

a)
b)
c)
d)
99.

Which image shows a correct dot and cross diagram?

a)

b)

c)

d)

Similar Resources on Wayground

Physical Science Chemistry Review

95 questions

Physical Science Chemistry Review

quiz

Worksheet

•

KG - University

REPASO

102 questions

REPASO

quiz

Worksheet

•

3rd Grade

A+ Acronyms

100 questions

A+ Acronyms

quiz

Worksheet

•

KG - University