{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

1

1 → 2

1 → 3

2 → 3

3 → 1

1

A

B

C

D

1

The melting points and boiling points of pure substances W, X, and Y are shown.
W
X
Y
melting point/°C
-114
115
-101
boiling point/°C
78
445
-34
The substances are chlorine, ethanol, and sulfur.
Which row identifies W, X, and Y?

	W	X	Y
melting point/°C	-114	115	-101
boiling point/°C	78	445	-34

chlorine

ethanol

sulfur

ethanol

sulfur

chlorine

sulfur

chlorine

ethanol

sulfur

ethanol

chlorine

1

4 In which atom is the number of protons equal to the number of neutrons?

$^{40}_{18}\text{Ar}$

$^{19}_{9}\text{F}$

$^{23}_{11}\text{Na}$

$^{16}_{8}\text{O}$

1

5 Which row identifies an alloy, a pure metal and a non-metal?

brass, carbon, copper

brass, copper, carbon

copper, brass, carbon

copper, carbon, brass

1

6 A covalent molecule Q contains exactly six shared electrons. What is Q?

ammonia, $\text{NH}_3$

chlorine, $\text{Cl}_2$

methane, $\text{CH}_4$

water, $\text{H}_2\text{O}$

1

Graphite has a high melting point.

Graphite is a form of carbon.

Graphite is a lubricant.

Graphite is a non-metal.

1

The equation for the reaction between magnesium and dilute sulfuric acid is shown.
The M_r of MgSO₄ is 120.
$Mg + H_2SO_4 \rightarrow MgSO_4 + H_2$
Which mass of magnesium sulfate is formed when 12 g of magnesium completely reacts with dilute sulfuric acid?

5 g

10 g

60 g

120 g

1

Negative electrode: bubbles of a colourless gas, Positive electrode: bubbles of a brown gas

Negative electrode: bubbles of a colourless gas, Positive electrode: bubbles of a colourless gas

Negative electrode: shiny grey liquid, Positive electrode: bubbles of a brown gas

Negative electrode: shiny grey liquid, Positive electrode: bubbles of a colourless gas

1

Which gas is used as a fuel?

argon

hydrogen

nitrogen

oxygen

1

Burning fuels is an exothermic reaction.
What is meant by the term exothermic?

A gas is produced.

Energy is released.

Heat is absorbed.

The mass of the fuel decreases.

1

decrease rate of reaction; decrease rate of reaction

decrease rate of reaction; increase rate of reaction

increase rate of reaction; decrease rate of reaction

increase rate of reaction; increase rate of reaction

1

Water is added to anhydrous copper(II) sulfate.
What happens during the reaction?

The copper(II) sulfate turns blue and the solution formed gets colder.

The copper(II) sulfate turns blue and the solution formed gets hotter.

The copper(II) sulfate turns white and the solution formed gets colder.

The copper(II) sulfate turns white and the solution formed gets hotter.

1

Which equation shows an oxidation reaction?

$C + O_2 \rightarrow CO_2$

$CaCO_3 \rightarrow CaO + CO_2$

$CaO + 2HCl \rightarrow CaCl_2 + H_2O$

$N_2O_4 \rightarrow 2NO_2$

1

calcium / hydrogen

calcium carbonate / carbon dioxide

calcium hydroxide / hydrogen

calcium oxide / carbon dioxide

1

Which statement about oxides is correct?

A solution of magnesium oxide has a pH less than $7$.

A solution of sulfur dioxide has a pH greater than $7$.

Magnesium oxide reacts with nitric acid to make a salt. (+water)

Sulfur dioxide reacts with hydrochloric acid to make a salt.

1

1, 2 and 3

1 and 2 only

1 and 3 only

2 and 3 only

1

iron(II) chloride and iron(III) sulfate

iron(III) chloride and iron(III) sulfate

iron(II) sulfate and iron(III) chloride

iron(III) sulfate and iron(III) chloride

1

19 Which element is in the same period of the Periodic Table as silicon?

germanium

scandium

sodium

strontium

1

20 Which statement about the halogens is correct?

A sample of bromine reacts with potassium chloride solution.

A sample of bromine reacts with potassium iodide solution.

A sample of chlorine has a higher density than a sample of bromine.

A sample of chlorine is a darker colour than a sample of bromine.

1

catalytic activity of
transition elements: good,
compounds of transition elements: good

catalytic activity of
transition elements: good,
compounds of transition elements: poor

catalytic activity of
transition elements: poor,
compounds of transition elements: good

catalytic activity of
transition elements: poor,
compounds of transition elements: poor

1

22 Which statement about the noble gases is not correct?

Noble gases are diatomic molecules.

Noble gases are unreactive gases.

Noble gases have full outer electron shells.

The noble gas argon is used in lamps.

1

23 The following statements are made about the metals copper, iron, magnesium, and zinc.
Their oxides are acidic.
They all conduct electricity in the solid state.
They all have high melting points.
They all react with dilute acids to form hydrogen.
Which statements are correct?

1 and 2

1 and 4

2 and 3

3 and 4

1

A

Bis the most reactive.

C

D

1

In a blast furnace, iron ore is mixed with coke and limestone, and heated in hot air. Compound R is formed. Compound R then reduces the iron ore to iron. Which equation shows the formation of compound R?

$C + O_2 \rightarrow CO_2$

$CO_2 + C \rightarrow 2CO$

$CaCO_3 \rightarrow CaO + CO_2$

$CaO + SiO_2 \rightarrow CaSiO_3$

1

Which statement explains why aluminium is used in the manufacture of aircraft?

It conducts heat well.

It has a low density.

It is a good conductor of electricity.

It is easy to recycle.

1

$132 \text{ cm}^3$

$152 \text{ cm}^3$

$180 \text{ cm}^3$

$570 \text{ cm}^3$

1

A steel bicycle which had been left outdoors for several months was starting to rust. What would not reduce the rate of corrosion?

Remove the rust and paint the bicycle.

Remove the rust and store the bicycle in a dry shed.

Remove the rust and wipe the bicycle with a clean, damp cloth.

Remove the rust and wipe the bicycle with an oily cloth.

1

A

B

C

D

1

Farmers use fertilisers to replace minerals in the soil that have been removed by the crops they grow. Which elements in the soil are replaced by adding fertilisers?

Ca, P, O

K, O, S

N, K, P

N, O, S

1

Which statement is correct?

Atmospheric carbon dioxide is not a cause of climate change.

Atmospheric methane is produced by respiration.

Burning natural gas decreases the level of carbon dioxide in the atmosphere.

Decomposition of vegetation causes an increase in atmospheric methane.

1

Which statement about sulfur and its compounds is not correct?

Sulfur dioxide is used as a food preservative.

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

Sulfur forms a basic oxide.

Sulfur is used in the manufacture of sulfuric acid.

1

Which process is used to convert limestone (calcium carbonate) into lime?

electrolysis

fractional distillation

incomplete combustion

thermal decomposition

1

A

B

C

D

1

A

B

C

D

1

Four organic compounds are listed:
ethane
ethanoic acid
ethanol
ethene
Which bond do all four compounds contain?

$C-C$

$C-H$

$C-O$

$O-H$

1

because they contain fluorine and carbon atoms

because they have saturated bonds

because they have the same functional group

because they react differently from each other

1

Which substances can be obtained by cracking hydrocarbons?

ethanol and ethene

ethanol and hydrogen

ethene and hydrogen

ethene and poly(ethene)

1

Which reaction is used to make ethanol?

adding steam to ethene

addition polymerisation

fractional distillation of petroleum

reacting ethene with aqueous bromine

1

Polymers are long-chain molecules made from small molecules linked together.
Four polymers or types of polymer are listed:
carbohydrates
nylon
proteins
Terylene
Which of these polymers or types of polymer are synthetic?

1 and 3

1 and 4

2 and 3

2 and 4

metal	reaction of the metal with water	reaction of the metal oxide with carbon
X	vigorous reaction with cold water	no reaction
Y	no reaction	metal and carbon dioxide produced
Z	no reaction observed with cold water but reaction observed with steam	no reaction

metal	reaction of the metal with water	reaction of the metal oxide with carbon
X	vigorous reaction with cold water	no reaction
Y	no reaction	metal and carbon dioxide produced
Z	no reaction observed with cold water but reaction observed with steam	no reaction

GCSE Multiple choice paper 1

GCSE Multiple choice paper 1

The melting points and boiling points of pure substances W, X, and Y are shown.WXYmelting point/°C-114115-101boiling point/°C78445-34The substances are chlorine, ethanol, and sulfur.Which row identifies W, X, and Y?

4 In which atom is the number of protons equal to the number of neutrons?

5 Which row identifies an alloy, a pure metal and a non-metal?

6 A covalent molecule Q contains exactly six shared electrons. What is Q?

The equation for the reaction between magnesium and dilute sulfuric acid is shown.The Mr of MgSO4 is 120.$Mg + H_2SO_4 \rightarrow MgSO_4 + H_2$Which mass of magnesium sulfate is formed when 12 g of magnesium completely reacts with dilute sulfuric acid?

Which gas is used as a fuel?

Burning fuels is an exothermic reaction.What is meant by the term exothermic?

Water is added to anhydrous copper(II) sulfate.What happens during the reaction?

Which equation shows an oxidation reaction?

Which statement about oxides is correct?

19 Which element is in the same period of the Periodic Table as silicon?

20 Which statement about the halogens is correct?

22 Which statement about the noble gases is not correct?

22 Which statement about the noble gases is not correct?

23 The following statements are made about the metals copper, iron, magnesium, and zinc.Their oxides are acidic.They all conduct electricity in the solid state.They all have high melting points.They all react with dilute acids to form hydrogen.Which statements are correct?

23 The following statements are made about the metals copper, iron, magnesium, and zinc.

In a blast furnace, iron ore is mixed with coke and limestone, and heated in hot air. Compound R is formed. Compound R then reduces the iron ore to iron. Which equation shows the formation of compound R?

Which statement explains why aluminium is used in the manufacture of aircraft?

A steel bicycle which had been left outdoors for several months was starting to rust. What would not reduce the rate of corrosion?

Farmers use fertilisers to replace minerals in the soil that have been removed by the crops they grow. Which elements in the soil are replaced by adding fertilisers?

Which statement is correct?

Which statement about sulfur and its compounds is not correct?

Which process is used to convert limestone (calcium carbonate) into lime?

Four organic compounds are listed:ethaneethanoic acidethanoletheneWhich bond do all four compounds contain?

Which substances can be obtained by cracking hydrocarbons?

Which reaction is used to make ethanol?

Polymers are long-chain molecules made from small molecules linked together.Four polymers or types of polymer are listed:carbohydratesnylonproteinsTeryleneWhich of these polymers or types of polymer are synthetic?

The diagrams show particles in a container.Which two diagrams show the process of evaporation?

Which piece of apparatus is used to measure exactly $26.3 \, \text{cm}^3$ of a liquid?

The melting points and boiling points of pure substances W, X, and Y are shown.WXYmelting point/°C-114115-101boiling point/°C78445-34The substances are chlorine, ethanol, and sulfur.Which row identifies W, X, and Y?

4 In which atom is the number of protons equal to the number of neutrons?

5 Which row identifies an alloy, a pure metal and a non-metal?

6 A covalent molecule Q contains exactly six shared electrons. What is Q?

7 The 'lead' in a pencil is made of a mixture of graphite and clay. When the percentage of graphite is increased, the pencil slides across the paper more easily. Which statement explains this observation?

The equation for the reaction between magnesium and dilute sulfuric acid is shown.The Mr of MgSO4 is 120.$Mg + H_2SO_4 \rightarrow MgSO_4 + H_2$Which mass of magnesium sulfate is formed when 12 g of magnesium completely reacts with dilute sulfuric acid?

What is observed at each electrode when molten lead(II) bromide is electrolysed using platinum electrodes?

Which gas is used as a fuel?

Burning fuels is an exothermic reaction.What is meant by the term exothermic?

The diagram shows a rate of reaction experiment.Increasing the concentration of the acid and increasing the temperature both affect the rate of reaction.Which row is correct?

Water is added to anhydrous copper(II) sulfate.What happens during the reaction?

Which equation shows an oxidation reaction?

Dilute nitric acid is added to a solid, F. A gas, G, is produced which is denser than air and extinguishes a burning splint. What are F and G?

Which statement about oxides is correct?

Which methods are suitable for preparing both zinc sulfate and copper(II) sulfate?

What are X and Y?

19 Which element is in the same period of the Periodic Table as silicon?

20 Which statement about the halogens is correct?

Which row shows the catalytic activity of transition elements and their compounds?

Which row shows the catalytic activity of transition elements and their compounds?

22 Which statement about the noble gases is not correct?

22 Which statement about the noble gases is not correct?

23 The following statements are made about the metals copper, iron, magnesium, and zinc.Their oxides are acidic.They all conduct electricity in the solid state.They all have high melting points.They all react with dilute acids to form hydrogen.Which statements are correct?

23 The following statements are made about the metals copper, iron, magnesium, and zinc.

In a blast furnace, iron ore is mixed with coke and limestone, and heated in hot air. Compound R is formed. Compound R then reduces the iron ore to iron. Which equation shows the formation of compound R?

Which statement explains why aluminium is used in the manufacture of aircraft?

Dry air is passed over hot copper until all the oxygen has reacted. The volume of gas at the end of the reaction is $120 \text{ cm}^3$. What is the starting volume of dry air?

A steel bicycle which had been left outdoors for several months was starting to rust. What would not reduce the rate of corrosion?

Which statements about water are correct?

Farmers use fertilisers to replace minerals in the soil that have been removed by the crops they grow. Which elements in the soil are replaced by adding fertilisers?

Which statement is correct?

Which statement about sulfur and its compounds is not correct?

Which process is used to convert limestone (calcium carbonate) into lime?

Lime is used to treat an industrial waste.Which change occurs in the treatment?

What is not the correct use of the fraction named?

Four organic compounds are listed:ethaneethanoic acidethanoletheneWhich bond do all four compounds contain?

The first three members of a homologous series are shown below: Why do these molecules represent a homologous series?

Which substances can be obtained by cracking hydrocarbons?

Which reaction is used to make ethanol?

Polymers are long-chain molecules made from small molecules linked together.Four polymers or types of polymer are listed:carbohydratesnylonproteinsTeryleneWhich of these polymers or types of polymer are synthetic?

Which row shows the catalytic activity of transition elements and their compounds?

The melting points and boiling points of pure substances W, X, and Y are shown.
W
X
Y
melting point/°C
-114
115
-101
boiling point/°C
78
445
-34
The substances are chlorine, ethanol, and sulfur.
Which row identifies W, X, and Y?

The equation for the reaction between magnesium and dilute sulfuric acid is shown.
The M_r of MgSO₄ is 120.
$Mg + H_2SO_4 \rightarrow MgSO_4 + H_2$
Which mass of magnesium sulfate is formed when 12 g of magnesium completely reacts with dilute sulfuric acid?

Burning fuels is an exothermic reaction.
What is meant by the term exothermic?

Water is added to anhydrous copper(II) sulfate.
What happens during the reaction?

23 The following statements are made about the metals copper, iron, magnesium, and zinc.
Their oxides are acidic.
They all conduct electricity in the solid state.
They all have high melting points.
They all react with dilute acids to form hydrogen.
Which statements are correct?

Four organic compounds are listed:
ethane
ethanoic acid
ethanol
ethene
Which bond do all four compounds contain?

Polymers are long-chain molecules made from small molecules linked together.
Four polymers or types of polymer are listed:
carbohydrates
nylon
proteins
Terylene
Which of these polymers or types of polymer are synthetic?

The diagrams show particles in a container.
Which two diagrams show the process of evaporation?

The melting points and boiling points of pure substances W, X, and Y are shown.
W
X
Y
melting point/°C
-114
115
-101
boiling point/°C
78
445
-34
The substances are chlorine, ethanol, and sulfur.
Which row identifies W, X, and Y?

The equation for the reaction between magnesium and dilute sulfuric acid is shown.
The M_r of MgSO₄ is 120.
$Mg + H_2SO_4 \rightarrow MgSO_4 + H_2$
Which mass of magnesium sulfate is formed when 12 g of magnesium completely reacts with dilute sulfuric acid?

Burning fuels is an exothermic reaction.
What is meant by the term exothermic?

The diagram shows a rate of reaction experiment.
Increasing the concentration of the acid and increasing the temperature both affect the rate of reaction.
Which row is correct?

Water is added to anhydrous copper(II) sulfate.
What happens during the reaction?

23 The following statements are made about the metals copper, iron, magnesium, and zinc.
Their oxides are acidic.
They all conduct electricity in the solid state.
They all have high melting points.
They all react with dilute acids to form hydrogen.
Which statements are correct?

Lime is used to treat an industrial waste.
Which change occurs in the treatment?

Four organic compounds are listed:
ethane
ethanoic acid
ethanol
ethene
Which bond do all four compounds contain?

The first three members of a homologous series are shown below:

Why do these molecules represent a homologous series?

Polymers are long-chain molecules made from small molecules linked together.
Four polymers or types of polymer are listed:
carbohydrates
nylon
proteins
Terylene
Which of these polymers or types of polymer are synthetic?