There are forty questions in this quiz. Select the correct answer from the given choices.
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Question 1 of 40
1. Question
Which row about a change of state is correct?
change of state energy change process A solid → liquid heat given out melting B gas → liquid heat taken in evaporation C solid → gas heat taken in sublimation D liquid → solid heat given out condensing CorrectIncorrect -
Question 2 of 40
2. Question
Gases are separated from liquid air by fractional distillation.
The boiling points of four gases are shown.
Which gas is both monoatomic and a liquid at –200∘C?gas boiling
point / ∘CA argon –186 B helium –269 C neon –246 D nitrogen –196 CorrectIncorrect -
Question 3 of 40
3. Question
Two different food colourings, X and Y, are tested using chromatography.
Three pure dyes, 1, 2 and 3, are also tested.
The chromatogram is shown.
Which statements are correct?- X and Y both contain two or more dyes.
- Dyes 2 and 3 are present in both X and Y.
- The Rf of dye 1 is 0.625.
CorrectIncorrect -
Question 4 of 40
4. Question
Which statement about the atoms of all the isotopes of carbon is correct?
CorrectIncorrect -
Question 5 of 40
5. Question
Which diagram represents the structure of silicon(IV) oxide?
CorrectIncorrect -
Question 6 of 40
6. Question
Lithium and fluorine react to form lithium fluoride.
A student writes three statements about the reaction.- Lithium atoms lose an electron when they react.
- Each fluoride ion has one more electron than a fluorine atom.
- Lithium fluoride is a mixture of elements.
Which statements are correct?
CorrectIncorrect -
Question 7 of 40
7. Question
How many electrons are used to form covalent bonds in a molecule of methanol, CH3OH?
CorrectIncorrect -
Question 8 of 40
8. Question
Magnesium oxide has a high melting point.
Carbon dioxide has a low melting point.
Which row identifies the attractive forces that are broken when these compounds are melted?magnesium oxide carbon dioxide A strong attractions between molecules weak attractions between atoms B strong attractions between molecules weak attractions between molecules C strong attractions between ions weak attractions between atoms D strong attractions between ions weak attractions between molecules CorrectIncorrect -
Question 9 of 40
9. Question
The ionic half-equation for the formation of oxygen during the electrolysis of aluminium oxide is shown.
xO2– → O2 + ye–
What are the values of x and y?x y A 1 2 B 1 4 C 2 2 D 2 4 CorrectIncorrect -
Question 10 of 40
10. Question
A compound has the formula XF2 and has a relative mass of 70.
What is element X?CorrectIncorrect -
Question 11 of 40
11. Question
The diagram shows a section of an overhead power cable.
Which statement explains why a particular substance is used?CorrectIncorrect -
Question 12 of 40
12. Question
During the electrolysis of dilute sulfuric acid, hydrogen is collected at the cathode.
What is the ionic half-equation for this reaction?CorrectIncorrect -
Question 13 of 40
13. Question
Which row describes an endothermic reaction?
energy level diagram energy transfer A energy is transferred
from the surroundings
to the reactionB energy is transferred
from the surroundings
to the reactionC energy is transferred
from the reaction
to the surroundingsD energy is transferred
from the reaction
to the surroundingsCorrectIncorrect -
Question 14 of 40
14. Question
The equation for the complete combustion of methane is shown.
CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
The bond energies are shown in the table.bond bond energy
in kJ / molC–H +410 C=O +805 O–H +460 O=O +496 What is the energy change for the reaction?
CorrectIncorrect -
Question 15 of 40
15. Question
Hydrogen fuel cells can be used to power cars.
Which statements about a fuel cell are correct?- The balanced equation for the reaction is H2 + O2 → H2O.
- The fuel cell generates electricity.
- In the fuel cell hydrogen is reduced.
- The reactants are gases at room temperature.
CorrectIncorrect -
Question 16 of 40
16. Question
The apparatus shown is used to measure the rate of a reaction.
Which equation represents a reaction where the rate can be measured using this apparatus?CorrectIncorrect -
Question 17 of 40
17. Question
P is a hydrated metal salt with a blue colour. When P is heated, water is given off, leaving solid Q.
R is a hydrated metal salt with a pink colour. When R is heated, water is given off, leaving solid S.
Which row gives the name of P and the colour of S?name of P colour of S A hydrated cobalt(II) chloride blue B hydrated cobalt(II) chloride white C hydrated copper(II) sulfate blue D hydrated copper(II) sulfate white CorrectIncorrect -
Question 18 of 40
18. Question
Magnesium reacts with copper(II) oxide to give magnesium oxide and copper.
Which substance is the oxidising agent in this reaction?CorrectIncorrect -
Question 19 of 40
19. Question
Part of the Periodic Table is shown.
Which element forms an acidic oxide?
CorrectIncorrect -
Question 20 of 40
20. Question
When aqueous sodium hydroxide is added to a solution of a metal ion, a grey-green precipitate forms, which dissolves in excess to form a dark green solution.
What is the identity of the metal ion?CorrectIncorrect -
Question 21 of 40
21. Question
Which statements about strong acids are correct?
- They have a high concentration of OH– ions.
- They have a pH value of 1.
- They completely ionise in water.
- They turn red litmus blue.
CorrectIncorrect -
Question 22 of 40
22. Question
Metal X reacts with non-metal Y to form an ionic compound with the formula X2Y.
Which statements are correct?- X is in Group I of the Periodic Table.
- X is in Group II of the Periodic Table.
- Y is in Group VI of the Periodic Table.
- Y is in Group VII of the Periodic Table.
CorrectIncorrect -
Question 23 of 40
23. Question
The table gives some properties of Group IV elements.
element density/(g /cm3) boiling point
/ ∘Ccarbon 2.2 4827 silicon germanium 5.3 2830 tin 5.8 2270 lead 11.3 1755 Which row describes the properties of silicon?
element density/(g /cm3) boiling point
/ ∘CA 2.3 3265 B 3.1 1997 C 6.2 2920 D 24.6 11682 CorrectIncorrect -
Question 24 of 40
24. Question
The metal beryllium does not react with cold water.
It reacts with hydrochloric acid but cannot be extracted from its ore by using carbon.
Where is beryllium placed in the reactivity series?magnesium
A
zinc
B
iron
C
copper
DCorrectIncorrect -
Question 25 of 40
25. Question
Why is cryolite used in the extraction of aluminium from bauxite?
CorrectIncorrect -
Question 26 of 40
26. Question
Which statements about the uses of metals are correct?
- Iron is used to make aircraft because iron has a low density.
- Copper is used to make electric cables because copper is a good conductor of electricity.
- Aluminium is used to make brass because aluminium is strong and hard.
- Iron is mixed with additives to make an alloy used in chemical plant.
CorrectIncorrect -
Question 27 of 40
27. Question
Which row describes the reactions of magnesium hydroxide and magnesium oxide?
effect of heat on hydroxide effect of heating oxide with carbon A forms magnesium oxide magnesium and carbon dioxide formed B forms magnesium oxide no reaction C no reaction magnesium and carbon dioxide formed D no reaction no reaction CorrectIncorrect -
Question 28 of 40
28. Question
The properties of an element are listed.
- Its melting point is 3414∘C.
- Some of its compounds are catalysts.
- It has variable oxidation states.
Where is the element found in the Periodic Table?
CorrectIncorrect -
Question 29 of 40
29. Question
Petrol burns in a car engine to produce waste gases which leave through the car exhaust.
One of these waste gases is an oxide of nitrogen.
Which statement describes how this oxide of nitrogen is formed?CorrectIncorrect -
Question 30 of 40
30. Question
Which combination of chemical compounds can be used to produce the fertiliser shown?
CorrectIncorrect -
Question 31 of 40
31. Question
Which process does not produce carbon dioxide?
CorrectIncorrect -
Question 32 of 40
32. Question
Which substance is used as a bleach in the manufacture of paper?
CorrectIncorrect -
Question 33 of 40
33. Question
What is an industrial use of calcium carbonate?
CorrectIncorrect -
Question 34 of 40
34. Question
Propane reacts with chlorine.
Which row shows a condition required for this reaction and identifies the type of reaction?condition type of reaction A phosphoric acid catalyst addition B phosphoric acid catalyst substitution C ultraviolet light addition D ultraviolet light substitution CorrectIncorrect -
Question 35 of 40
35. Question
The pie chart represents the composition of natural gas.
Which sector represents methane?
CorrectIncorrect -
Question 36 of 40
36. Question
Which statement describes the reaction between ethene and steam?
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Question 37 of 40
37. Question
The formula of a hydrocarbon is CxHy.
The equation for its complete combustion is shown.
CxHy + 8O2 ⟶ 5CO2 + 6H2O
What are the values of x and y?x y A 5 6 B 5 12 C 6 5 D 12 5 CorrectIncorrect -
Question 38 of 40
38. Question
The formula of an ester is CH3CH2CH2COOCH2CH2CH3.
Which acid and alcohol react together to make the ester?acid alcohol A butanoic acid butanol B butanoic acid propanol C propanoic acid butanol D propanoic acid propanol CorrectIncorrect -
Question 39 of 40
39. Question
Molecule 1 undergoes a process to make molecule 2.
Which row describes the molecules and the process?molecule 1 process molecule 2 A monomer cracking polymer B monomer polymerisation polymer C small molecule polymerisation monomer D small molecule cracking monomer CorrectIncorrect -
Question 40 of 40
40. Question
Which structure represents a protein?
CorrectIncorrect