I M Wilson
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quick quiz on different topics from C2 units for AQA gcse

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I M Wilson
Created by I M Wilson about 9 years ago
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C2

Question 1 of 28

1

Select the substances which are giant 3D molecules

Select one or more of the following:

  • Diamond

  • Sillicon Dioxide

  • Graphite

  • Graphene

  • Coal

Explanation

Question 2 of 28

1

Plastics all have the same properties because they are all made by polymerisation.

Select one of the following:

  • True
  • False

Explanation

Question 3 of 28

1

How big is a human hair?

Select one of the following:

  • 80000nm

  • 80000mm

  • 8000nm

  • 8000mm

Explanation

Question 4 of 28

1

Complete the formula for Magnesium Carbonate
Mg

Select one of the following:

  • CO2

  • CO3

  • CO

Explanation

Question 5 of 28

1

NH4+ is more commonly known as...

Select one of the following:

  • Ammonia

  • Ammonium

  • Nitro-tetra-hydride

  • Hydrogen-nitride

Explanation

Question 6 of 28

1

Gas chromatography can be used to identify gases.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 28

1

The electronic structure of chlorine is...

Select one of the following:

  • 2,8,8,7

  • 2,7

  • 2,8,7

  • 4,4,4,4,1

  • 8,8,1

  • 2,4,4,4,3

Explanation

Question 8 of 28

1

What is a mole?

Select one of the following:

  • A specific mass of an element.

  • A specific number of particles.

  • The number of different molecules in an equation.

  • A small furry blind rodent.

Explanation

Question 9 of 28

1

Covalent bonds contain shared pairs of electrons.

Select one of the following:

  • True
  • False

Explanation

Question 10 of 28

1

In electrolysis, the cation is...

Select one of the following:

  • The most reactive ion.

  • The positive ion.

  • The highest powered electrode.

  • The positive electrode.

  • The negative ion.

  • The negative electrode.

Explanation

Question 11 of 28

1

What name do we give to a substance that can be separated using electricity?

Select one of the following:

  • Electrolysis.

  • Electrolyte.

  • Salt

  • Electronegative

  • Solution

  • Liquid

Explanation

Question 12 of 28

1

The raw material that is shipped in to extract aluminium is...

Select one of the following:

  • Bauxite

  • Alumina

  • Aluminum

  • Cryolyte

  • Aluminium Oxide

Explanation

Question 13 of 28

1

What does a half equation tell you?

Select one of the following:

  • The loss or gain of electrons from one half of the equation.

  • The loss or gain of electrons from one specific molecule.

  • The movement of electrons from one ionic molecule to another (This will change the charge of the ion.

Explanation

Question 14 of 28

1

An anode is...

Select one of the following:

  • A negative ion

  • A negative electrode

  • A positive ion

  • A positive electrode

Explanation

Question 15 of 28

1

Oxidation is _________ reduction is _________ of electrons.

Select one of the following:

  • loss, gain

  • gain, loss

Explanation

Question 16 of 28

1

Acids contain H+ ions which is why we measure how strong they are using the pH scale (H stands for hydrogen).

Select one of the following:

  • True
  • False

Explanation

Question 17 of 28

1

An insoluble salt formed from two liquids is known as a precipitate.

Select one of the following:

  • True
  • False

Explanation

Question 18 of 28

1

Burning coal is an endothermic reaction because you have to give it energy from a flame (match/lighter) to get it to start.

Select one of the following:

  • True
  • False

Explanation

Question 19 of 28

1

Why is a mass spectrometer under vacuum conditions?

Select one of the following:

  • To reduce mass.

  • To reduce friction.

  • To reduce interference from air particles.

Explanation

Question 20 of 28

1

What is the correct half equation for the hydrogen in the neutralisation of sulphuric acid using calcium carbonate?
H2SO4 + CaCO3 --> H2O + CaSO4 + CO2

Select one of the following:

  • H+ + e- --> H

  • H --> H+ + e-

  • 2H+ + e- --> 2H

  • 2H+ + 2e- --> 2H

  • H+2 + 2e- --> 2H+

Explanation

Question 21 of 28

1

Select all of the things that can affect the rate of reaction.

Select one or more of the following:

  • Temperature

  • Mass

  • Concentration

  • Volume

  • Surface Area

  • Pressure

  • Force

Explanation

Question 22 of 28

1

The empirical formula is the same as the molecular formula.

Select one of the following:

  • True
  • False

Explanation

Question 23 of 28

1

What is the theoretical yield?

Select one of the following:

  • The answer you think you will get.

  • The mass of product you make.

  • The mass of product you should make according to the calculations.

  • The volume of gas made by a similar reaction.

Explanation

Question 24 of 28

1

What is the catalyst used in the Haber Process?

Select one of the following:

  • Nickel

  • Platinum

  • Iron

Explanation

Question 25 of 28

1

What does rate of reaction mean?

Select one of the following:

  • How quickly the reaction happens.

  • How efficient the reaction is.

  • The frequency of successful collisions.

  • The intensity of the gas released.

Explanation

Question 26 of 28

1

How do you work out percentage yield?

Select one of the following:

  • (actual/theoretical) x100

  • (theoretical/actual) x100

  • (actual/theoretical) /100

  • (theoretical/actual) /100

Explanation

Question 27 of 28

1

Select the exothermic reaction(s)

Select one or more of the following:

  • Ammonium nitrate + Water

  • Acid + Alkali

  • CaCO3 (+heat)

  • Magnesium + Hydrochloric acid

Explanation

Question 28 of 28

1

What does Mr stand for?

Select one of the following:

  • Relative molecular mass

  • Molecular formula

  • Mass

  • Mister

Explanation

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