Gabi Germain
Quiz by , created more than 1 year ago

A summary quiz on AQA unit 3 chemistry, good for last minute revision

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Gabi Germain
Created by Gabi Germain over 9 years ago
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AQA GCSE Chemistry Unit 3 quiz

Question 1 of 49

1

How did mandeleev overcome the problem of undiscovered elements?

Select one of the following:

  • Put them in a seperate groups

  • Leaving spaces

  • Ignoring them

Explanation

Question 2 of 49

1

How were the early periodic tables arranged?

Select one of the following:

  • By proton number

  • By Atomic weight

Explanation

Question 3 of 49

1

How is the modern periodic table ordered?

Select one of the following:

  • Atomic weight

  • Proton number

Explanation

Question 4 of 49

1

Elements in the same group have the same number of...

Select one of the following:

  • Electrons in their outer shell

  • shells or energy levels

  • Protons in the nucleus

Explanation

Question 5 of 49

4

Characteristics of group 1:

Select one or more of the following:

  • Low density

  • High density

  • React with non metals to form ionic compounds and carry a +1 charge

  • React with non metals to form covalent compounds and carry a +1 charge

  • React with water to release hydrogen

  • form hydroxides that dissolves in water to give alkaline solutions

Explanation

Question 6 of 49

1

The further up the group 1 the more reactive and lower its melting poit

Select one of the following:

  • True
  • False

Explanation

Question 7 of 49

1

Characteristics of transition elements compared with group1:

Select one or more of the following:

  • higher melting points

  • lower melting points

  • stronger and harder

  • Much less reactive

  • Much more reactive

Explanation

Question 8 of 49

1

Transition metals are useful catalysts

Select one of the following:

  • True
  • False

Explanation

Question 9 of 49

1

What are group 7 elements known as?

Select one of the following:

  • Alkalis

  • Acids

  • Gases

  • Halogens

Explanation

Question 10 of 49

1

The further down group 7 the less reactive and the higher melting point.

Select one of the following:

  • True
  • False

Explanation

Question 11 of 49

1

A more reactive halogen can displace a less reactive halogen from an..

Select one of the following:

  • Aqueous solution of its salt

  • Aqueous solution of its oxide

Explanation

Question 12 of 49

1

The more energy levels an element has the less reactive it is

Select one of the following:

  • True
  • False

Explanation

Question 13 of 49

1

Hard water can contain..

Select one or more of the following:

  • Magnesium ions

  • Calcium ions

  • Hydrogencarbonate ions (in temporary)

  • barium

  • Berillium

Explanation

Question 14 of 49

1

Which type of water form a lather readily?

Select one of the following:

  • Soft water

  • Hard water

Explanation

Question 15 of 49

1

There are two types of hard water temporary hard water and permanent hard water

Select one of the following:

  • True
  • False

Explanation

Question 16 of 49

1

Scum is formed by the decomposition of Hydrogencarbonate ions in temporary hard water

Select one of the following:

  • True
  • False

Explanation

Question 17 of 49

1

What are two ways that hardness can be removed?

Select one of the following:

  • Exchange columns and adding sodium carbonate

  • Heating it and adding calcium carbonate

Explanation

Question 18 of 49

1

What are two things that water should have low levels of?

Select one or more of the following:

  • Water

  • Calcium

  • Microbes

  • Dissolved salts

Explanation

Question 19 of 49

1

Pure water can be produced by distillation

Select one of the following:

  • True
  • False

Explanation

Question 20 of 49

1

What do water filters contain to remove some dissolved substances from water?

Select one of the following:

  • Silver, carbon and ion exchange resin

  • Gold, carbon and ion exchange resin

Explanation

Question 21 of 49

1

Chlorine is added to water to increase microbes and flourine isn't added to improve dental health

Select one of the following:

  • True
  • False

Explanation

Question 22 of 49

1

How is energy released from substances measured?

Select one of the following:

  • Calorimetry

  • Titration

  • Electrolysis

Explanation

Question 23 of 49

1

Why in a chemical reaction should the reagents be mixed in an insulated container?

Select one of the following:

  • So less energy escapes to the surroundings

  • So it wont burn the person

  • so none of the substance leaks out

Explanation

Question 24 of 49

1

During a reaction energy is needed to make bonds and energy is released when breaking bonds

Select one of the following:

  • True
  • False

Explanation

Question 25 of 49

3

Three things to do when drawing an energy diagram:

Select one or more of the following:

  • Show reactants then products

  • Show activation energy

  • Overall energy change

  • Use a red pencil

  • Draw a best fit line

  • Show products then reactants

Explanation

Question 26 of 49

1

In an exothermic reaction more energy is released to make bonds than break them

Select one of the following:

  • True
  • False

Explanation

Question 27 of 49

1

Catalysts higher the activation energy

Select one of the following:

  • True
  • False

Explanation

Question 28 of 49

4

Tick the 4 true facts:

Select one or more of the following:

  • Lithium has a crimson flame

  • Lithium has a lilac flame

  • Potassium has a lilac flame

  • Barium has a blue flame

  • Barium has a green flame

  • sodium has a yellow flame

  • sodium has an orange flame

Explanation

Question 29 of 49

1

Aluminium, calcium and magnesium ions form white precipitates

Select one of the following:

  • True
  • False

Explanation

Question 30 of 49

1

What colour precipitate does copper form?

Select one of the following:

  • Blue

  • Green

  • Brown

Explanation

Question 31 of 49

1

What colour precipitate does iron (lll) ions form?

Select one of the following:

  • Green

  • Brown

  • Blue

Explanation

Question 32 of 49

1

What colour precipitate does iron(ll) ions give?

Select one of the following:

  • Green

  • Blue

  • Brown

Explanation

Question 33 of 49

1

Carbonates react with dilute acid to form carbon dioxide

Select one of the following:

  • True
  • False

Explanation

Question 34 of 49

1

Halide ions can be tested by adding what and what then looking at the precipitates?

Select one of the following:

  • Silver nitrate solution and dilute nitric acid

  • Silver nitrate solution and hydrochloric acid

  • silver nitrate solution and barium oxide

Explanation

Question 35 of 49

1

To test sulphate ions add hydrochloric acid and barium chloride solution

Select one of the following:

  • True
  • False

Explanation

Question 36 of 49

1

How can volumes of acid and alkali solutions that react with each other be measured?

Select one of the following:

  • Titration

  • Calorimetry

  • Electrolysis scales

Explanation

Question 37 of 49

2

What are the raw materials in the haber process?

Select one or more of the following:

  • Nitrogen

  • Hydrogen

  • Iron

  • Ammonia

Explanation

Question 38 of 49

1

What is the temperature and pressure in the haber process?

Select one of the following:

  • 200 atmospheres and 450 degrees

  • 450 atmospheres and 200 degrees

Explanation

Question 39 of 49

1

Ammonia is produced in the haber process

Select one of the following:

  • True
  • False

Explanation

Question 40 of 49

1

Equilibrium is reached when the reactions occur at the same rate in each direction

Select one of the following:

  • True
  • False

Explanation

Question 41 of 49

1

To increase the yield in a reaction that is exothermic in the forward direction what do you do?

Select one of the following:

  • Increase the temperature

  • Decrease the temperature

Explanation

Question 42 of 49

1

What can you do to increase the yield when the forward reaction has more gaseous molecules?

Select one of the following:

  • Increase the temperature

  • Decrease the temperature

Explanation

Question 43 of 49

1

We have to compromise temperature, pressure and rate of reaction in the haber process

Select one of the following:

  • True
  • False

Explanation

Question 44 of 49

1

Which functional group is for alcohols?

Select one of the following:

  • -OH

  • -COO-

  • -COOH

Explanation

Question 45 of 49

1

Which functional group is for esters?

Select one of the following:

  • -COO-

  • -OH

  • -COOH

Explanation

Question 46 of 49

1

What is the functional group for acids?

Select one of the following:

  • -COOH

  • -COO-

  • -OH

Explanation

Question 47 of 49

3

3 characteristics of alcohols:

Select one or more of the following:

  • burn in air

  • don't burn in air

  • React with sodium to produce hydrogen

  • React with sodium to produce carbon dioxide

  • dissolve in water to form a neutral solution

Explanation

Question 48 of 49

1

Oxidising ethanol makes ethanoic acid

Select one of the following:

  • True
  • False

Explanation

Question 49 of 49

4

4 characteristics of carboxylic acids:

Select one or more of the following:

  • dissolve in water to produce acidic solutions

  • dissolve in water to produce alkali solutions

  • dont ionise completely when dissolved in water so are weak acids

  • ionise completely with water

  • react with alcohols in the presence of an acid to produce esters

  • react with carbonates to produce carbon dioxide

Explanation

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