Font size
WorksheetsYear 10 Chemistry (Chapter 1-4)
Total questions: 60
Worksheet time: 46mins
Atoms contain electrons, neutrons and protons. What is the definition of nucleon number?
the number of neutrons in the nucleus of an atom
the number of protons in the nucleus of an atom
the total number of neutrons and protons in the nucleus of an atom
the total number of particles in an atom
The diagram shows the atomic structure of an element X. What is X?
aluminium
beryllium
boron
fluorine
Rescuers are drilling through fallen rock in order to rescue some men trapped in a cave. The drill
needs lubricating from time to time. The following statements were made about the materials used for the drill tip and the lubricant and the reasons for their use.
1 Diamond was used for the drill tip as it does not conduct electricity.
2 Diamond was used for the drill tip as it is very hard.
3 Graphite was used as the lubricant as it conducts electricity.
4 Graphite was used as the lubricant as it is soft and flaky.
Which statements are correct?
1 and 3
1 and 4
2 and 3
2 and 4
In which compounds are pairs of electrons shared between atoms?
1 methane
2 lead bromide
3 sodium chloride
1 only
2 only
1 and 3
1, 2 and 3
What is the relative formula mass, Mr, of CaCO3?
50
68
100
204
In the outline of the Periodic Table below, some elements are shown as numbers.
Which two numbers are metals in the same period?
1 and 2
1 and 7
3 and 5
5 and 6
Diagrams X, Y and Z represent the three states of matter.
Which change occurs during boiling?
X to Y
Y to Z
Z to X
Z to Y
P, Q, R and S are pieces of apparatus? Which row describes the correct apparatus for the measurement made?
P: the volume of acid added to alkali in a titration
Q: 1 cm3 of acid to add to calcium carbonate in a rate-determining experiment
R: 75 cm3 of a gas given off in a rate-determining experiment
S: 20 cm3 of alkali for use in a titration
Which statement about atoms is correct?
Atoms contain protons and electrons in the nucleus.
Neutrons are negatively charged.
Protons are positively charged.
The nucleon number is the number of neutrons.
Which diagram correctly shows the ions present in the compound potassium fluoride?
What do the nuclei of 11H hydrogen atoms contain?
electrons and neutrons
electrons and protons
neutrons only
protons only
The electronic structures of atoms X and Y are shown. X and Y form a covalent compound.
What is its formula?
XY5
XY3
XY
X3Y
Two atoms of magnesium, Mg, react with one molecule of oxygen, O2.
What is the formula of the product?
MgO
MgO2
Mg2O
Mg2O2
The Periodic Table lists all the known elements.
Elements are arranged in order of ....... 1 ....... number.
The melting points of Group I elements ....... 2 ....... down the group.
The melting points of Group VII elements ....... 3 ....... down the group.
Which words correctly complete the gaps 1, 2 and 3?
1-nucleon, 2-decrease, 3-increase
1-nucleon, 2-increase, 3-decrease
1-proton, 2-increase, 3-decrease
1-proton, 2-decrease, 3-increase
‘Particles moving very slowly from an area of higher concentration to an area of lower
concentration.’
Which process is being described?
a liquid being frozen
a solid melting
a substance diffusing through a liquid
a substance diffusing through the air
The structure of ethanoic acid is shown. Which diagram shows the arrangement of outer shell electrons in a molecule of ethanoic acid?
X is a solid at room temperature.
X has a high melting point.
Solid X conducts electricity.
Which diagram shows how the particles are arranged in solid X?
How do you remove the water to leave solid copper sulfate crystals?
Filter
Evaporate
Distill
What is the test for Hydrogen gas?
Squeaky pop
Lime water turning cloudy
Add pH paper
The charge on a Sodium ion is
+1
+2
-1
-2
The chemical symbol for Potassium is
P
K
Po
19
The atomic number refers to the
number of electrons
number of protons
number of electrons and protons
number of protons and neutrons
How many atoms make up a molecule of CuSO4 ?
3
4
5
6
Which is the correct formula for aluminum sulfide?
AlS
Al3S2
S3Al2
Al2S3
Which of the following pairs of elements will NOT form an ionic compound?
sodium and fluorine
phosphorous and aluminum
potassium and magnesium
strontium and oxygen
The ‘lead’ in pencil is made of a mixture of graphite and clay.
If the percentage of graphite is increased, the pencil slides across the paper more easily.
Why is this?
Graphite conducts electricity.
Graphite is a form of carbon.
Graphite is a lubricant.
Graphite is a non-metal.
Graphite is a form of carbon.
Why can graphite be used as a lubricant?
Graphite contains delocalised electrons which move throughout the structure.
Graphite contains weak covalent bonds so the atoms move easily.
Graphite has a low melting point so it easily turns into a liquid.
Graphite has weak forces of attraction between layers so they can move.
Which substance is not a macromolecule?
diamond
graphite
silicon (IV) oxide
sulfur
Which substances have similar structures?
diamond and graphite
diamond and silicon(IV) oxide
graphite and poly(ethene
graphite and silicon(IV) oxide
Name the picture.
forceps
test tube holder clamo
tongs
Name the picture.
mortar and pestle
stirring rods
wire gauze
A
B
C
D
Naphtha is a fraction obtained from petroleum (crude oil).
Explain how naphtha is obtained from petroleum (crude oil).
Simple distillation is used. Petroleum is first heated and then cooled down in the condenser. Naphtha is the only product from this distillation.
Fractional distillation is used. Petroleum is first heated in the fractionating column then cooled down in the condenser. Naphtha can be separated from the other fractions because of their similarity in boiling points.
Fractional distillation is used. Petroleum is first heated in the fractionating column then cooled down in the condenser. Naphtha can be separated from the other fractions because of their difference in boiling points.
Fractional distillation is used. Petroleum is cooled down and then heated to separate the fractions. Naphtha can be separated from the other fractions because of their difference in boiling points.
Simple distillation is used. Petroleum is first cooled down and then heated. Naphtha is the only product from this distillation.
A
B
C
D
A
B
C
D
Answer the question
D
B
A
C
Which of the following is a correct description for solids?
very closely packed and slide across each other
very closely packed and vibrate in fixed positions
closely packed and slide across each other
closely packed and vibrate in fixed position
Which of the following statements about the particle of a gas is true?
Gases can be compressed because their particles are smaller than those of liquids or solids.
Gases can be compressed because there is plenty of space between their particles.
Gases can be compressed because they have low boiling points.
Gases can be compressed because their particles are more elastic than those of liquids or solids.
What is the factor that determines the chemical properties of an element?
The number of electron shells
The number of electrons in the innermost shell
The number of electrons in the outermost shell
The number of neutrons in the nucleus
What pH is the strongest base?
1
7
4
14
Which is the ionic equation of the reaction between hydrochloric acid and sodium hydroxide?
Na+ (aq) + Cl- (aq) --> NaCl (aq)
H+ (aq) + OH- (aq) --> H2O (l)
H- (aq) + OH+ (aq) --> H2O (l)
Carbon dioxide is an acidic oxide with the formula of...
CO
CO2
CO3
C2O
Which type of oxides can react with both acids and bases?
(a)
Complete the sentence: In covalent bonds, electrons are _______________________
Lost
Gained
Halved
Shared
What is the name given to the structure of diamond, graphite and silicon dioxide?
Mega covalent structure
Mega ionic lattice
Giant covalent
Giant ionic
What type of bond is this?
Ionic
Covalent
Metallic
What type of structure is this?
Giant covalent
Simple covalent
Giant Ionic lattice
Metallic
20. Compound X is heated with carbon using the apparatus shown. A brown solid is formed in the reaction tube and the limewater turns milky. What is compound X?
A. calcium oxide
B. copper (II) oxide
C. magnesium oxide
D. sodium oxide
