AQA GCSE Chemistry New Specification 2015

Question 1

What is the test for hydrogen gas?

Accepted Answer

A burning splint which results in a popping sound

Question 2

Which of the the following is true about condensation polymerisation?

Accepted Answer

A small molecule is lost when condensation polymers form

Question 3

Which of the following is the most accurate description of an alkene?

Accepted Answer

A hydrocarbon with a double carbon-carbon bond

Question 4

The formula mass of C2H6 is:

Accepted Answer

30

Question 5

Which of the following is the correct equation for the reaction of magnesium with oxygen?

Accepted Answer

2 Mg + O2 ⇨ 2 MgO

Question 6

Which of the following statements about metallic elements is correct?

Accepted Answer

Metal atoms usually lose electrons to become positive ions

Question 7

Producing short-chain hydrocarbons from long-chain hydrocarbons involves a process called:

Accepted Answer

Cracking

Question 8

X2+ could represent:

Accepted Answer

A metal from Group 2

Question 9

Z2- could represent:

Accepted Answer

A non-metal from Group 6

Question 10

Bronze is an alloy of:

Accepted Answer

Copper and tin

Question 11

The formula mass of CaO is:

Accepted Answer

56

Question 12

Which of the following techniques would be best for obtaining pure water from a sugar solution?

Accepted Answer

Simple distillation

Question 13

Why do elements in groups have similar chemical properties?

Accepted Answer

They have the same number of outer shell electrons

Question 14

Which of the following statements about elements is true?

Accepted Answer

Atoms are the smallest part of an element that can exist

Question 15

Which of the following is not a correct description of potable water?

Accepted Answer

Pure water

Question 16

Which of the following statements about equilibrium is true?

Accepted Answer

At Equil. the forward and backwards reaction rates are equal

Question 17

Which of the following correctly shows the reaction of sulfuric acid with sodium hydroxide?

Accepted Answer

H2SO4 + 2 NaOH ⇨ Na2SO4 + 2 H2O

Question 18

Which of the following is not a greenhouse gas?

Accepted Answer

N2

Question 19

The Plum Pudding model was an early theory of atomic structure which described:

Accepted Answer

A positively charged 'ball' with electrons in it

Question 20

Which ion is produced by an acid in aqueous solution?

Accepted Answer

H+

Question 21

Which of the following reactions shows zinc being reduced?

Accepted Answer

Zinc chloride + sodium ⇨ zinc + sodium chloride

Question 22

What was the answer to the first question of this quiz?

Accepted Answer

Atoms are the smallest part of an element that can exist

Question 23

What type of reaction does Mg undergo when it reacts to form magnesium oxide?

Accepted Answer

Oxidation

Question 24

In the electrolysis of PbBr2, why does the lead bromide need to be molten?

Accepted Answer

So the ions can move to the electrodes

Question 25

What happens to chlorine in the reaction of zinc with hydrochloric acid?

Accepted Answer

Chlorine is neither oxidised nor reduced

Question 26

D- could represent:

Accepted Answer

A non-metal from Group 7

Question 27

The formula mass of F2 is:

Accepted Answer

38

Question 28

Which of the following compounds is not an example of a giant covalent structure?

Accepted Answer

NH3

Question 29

Which of the statements below is true?

Accepted Answer

Elements that react to form positive ions are metals

Question 30

The formula mass of NaOH is:

Accepted Answer

40

Question 31

What type of substance does crude oil mainly consist of?

Accepted Answer

Alkanes

Question 32

How could sand and bits of rock be separated from a sample of rock salt?

Accepted Answer

Dissolve the rock salt in water and crystallise the NaCl

Question 33

Which of the following statements about halogens is true?

Accepted Answer

They are non-metals that exist as molecules of two atoms

Question 34

Which of the following properties is not typical for an ionic compound?

Accepted Answer

Conducts electricity in the solid state

Question 35

What is the electronic configuration of a neutral calcium atom?

Accepted Answer

2, 8, 8, 2

Question 36

Which of the following equations correctly represents the reaction of sodium with chlorine?

Accepted Answer

2Na + Cl2 ⇨ 2 NaCl

Question 37

Which two of the following compounds are ionic?

Accepted Answer

Potassium oxide, Calcium chloride

Question 38

Which two of the following could you take measurements of to work out the rate of reaction?

Accepted Answer

Volume of gas, Mass

Question 39

Rutherford's Nuclear Model was an early theory of atomic structure which described:

Accepted Answer

A small positive nucleus surrounded by a cloud of e-

Question 40

Diamond does not conduct electricity because:

Accepted Answer

Electrons in covalent bonds cannot move

Question 41

Of the following elements, suggest which one might form a molecular compound with chlorine?

Accepted Answer

P

Question 42

Which of the following does not cause reaction rate to increase?

Accepted Answer

Larger volume of the solution same concentration

Question 43

A+ could represent:

Accepted Answer

A metal from Group 1

Question 44

In a titration, 5 titres were recorded (12.95, 12.50, 12.25, 12.55 and 12.45 cm3). The mean is:

Accepted Answer

12.50

Question 45

Brass is an alloy of:

Accepted Answer

Copper and zinc

Question 46

Which of the following formulae represents butane?

Accepted Answer

C4H10

Question 47

A flame test of a given solution produced a lilac flame. The ion in solution was:

Accepted Answer

Potassium, K+

Question 48

Diamond has a high melting point because:

Accepted Answer

Each carbon atom makes four strong covalent bonds

Question 49

What are the approximate proportions of oxygen and nitrogen in the atmosphere today?

Accepted Answer

One-fifth oxygen and four-fifths nitrogen

Question 50

Bohr's Model was an early theory of atomic structure which described:

Accepted Answer

Electrons in fixed orbits around a small positive nucleus

Question 51

Which of these shows the first four alkanes in order of decreasing carbon chain length?

Accepted Answer

Butane, propane, ethane, methane

Question 52

What would be observed during the reaction of zinc carbonate with dilute hydrochloric acid?

Accepted Answer

Fizzing as a result of CO2 being produced

Question 53

What is the functional group in methanoic acid?

Accepted Answer

-COOH

Question 54

Which two of the following pollutants must be removed from sewage and agricultural waste?

Accepted Answer

Organic waste, Harmful microbes

Question 55

What is the enthalpy change in the reaction of CH4 with Cl2 to produce CH3Cl and HCl?

Accepted Answer

-122

Question 56

How is a pure substance defined in Chemistry?

Accepted Answer

A single element/compound not mixed with any other substance

Question 57

What are the products when an alcohol is completely combusted?

Accepted Answer

CO2 and H2O

Question 58

Which two of these substances are used as reactants in the Haber-Bosch process?

Accepted Answer

Nitrogen, Hydrogen

Question 59

Why is ammonia, NH3, classified as a compound?

Accepted Answer

It contains two elements chemically combined

Question 60

What does the reaction of magnesium with HCl(aq) produce?

Accepted Answer

Positive magnesium ions

AQA GCSE Chemistry New Specification 2015

Questions 60

AQA GCSE Chemistry New Specification 2015

Questions 60