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Chemistry Paper 2 Hard Questions - Chemistry Edexcel IGCSE

Total questions: 50

Worksheet time: 38mins

Name
Class
Date
1.

A measure of how much solute will dissolve in a solvent

a)

Solubility

b)

Solution

c)

Solvent

d)

Solute

2.

Solubility (g per 100g of solvent) =

a)

(mass of solid/mass of water removed) x 100

b)

(mass of solution/mass of solid removed) x 100

c)

mass of water removed/mass of solution

d)

mass of water removed/mass of solid

3.

The breaking down of a substance using electricity

(a)  

4.

A molten or dissolved ionic compound

(a)  

5.

Cathode

a)

Positive electrode

b)

Negative electrode

6.

Anode

a)

Positive electrode

b)

Negative electrode

7.

How many sources of ions are there in molten ionic compounds?

(a)  

8.

What must you clean your electrodes with before using them?

(a)  

9.

In aqueous solutions, what will be produced at the cathode if metal ions are present and the metal is more reactive than hydrogen?

a)

Hydrogen gas

b)

A solid layer of the pure metal

c)

Halide

d)

Oxygen gas

10.

In aqueous solutions, what will be produced at the cathode if metal ions are present and the metal is less reactive than hydrogen?

a)

Hydrogen gas

b)

A solid layer of the pure metal

c)

Halide

d)

Oxygen gas

11.

In aqueous solutions, what will be produced at the anode if halide ions are present?

a)

Hydrogen gas

b)

A solid layer of pure metal

c)

Halide

d)

Oxygen gas

12.

In aqueous solutions, what will be produced at the anode if no halide ions are present?

a)

Hydrogen gas

b)

A solid layer of pure metal

c)

Halide

d)

Oxygen gas

13.

Metals don't form ores if they are...

a)

Reactive

b)

Unreactive

14.

The more reactive a metal is

a)

The easier it is to extract from its ore

b)

The harder it is to extract from its ore

15.

If a metal is less reactive than carbon it can be extracted by...

a)

Reduction with carbon

b)

Electrolysis

16.

If a metal is more reactive than carbon it can be extracted by...

a)

Reduction with carbon

b)

Electrolysis

17.

Common properties of Iron, Aluminium and Copper:

a)

Dense

b)

Lustrous

c)

Light

d)

High melting points

e)

Low boiling points

18.

Common properties of Iron, Aluminium and Copper:

a)

high tensile strength

b)

low tensile strength

c)

malleable

d)

Good conductors of heat energy

e)

Good conductors of electricity

19.

Strong and hard to break

(a)  

20.

Used to make gates and railings

(a)  

21.

Iron that is almost completely pure

(a)  

22.

Corrodes easily

a)

Iron

b)

Aluminium

c)

Copper

23.

Used to make drinks cans

(a)  

24.

Aluminium is...

a)

Less dense than iron

b)

More dense than iron

25.

Used to make bicycle frames

(a)  

26.

Used to make aeroplanes

(a)  

27.

Used in electrical components such as wiring

(a)  

28.

Used in heating systems such as underfloor heating

(a)  

29.

Select the parts that make up low carbon steel

a)

0.1 - 0.3% carbon

b)

0.22 - 2.5% carbon

c)

chromium

d)

nickel

e)

iron

30.

Select the parts that make up high carbon steel

a)

0.1 - 0.3% carbon

b)

0.22 - 2.5% carbon

c)

chromium

d)

nickel

e)

iron

31.

Select the parts that make up stainless steel

a)

0.1 - 0.3% carbon

b)

0.22 - 2.5% carbon

c)

chromium

d)

nickel

e)

iron

32.

Select the parts that make up brass

a)

copper

b)

zinc

c)

chromium

d)

nickel

e)

iron

33.

Select the parts that make up bronze

a)

copper

b)

zinc

c)

tin

d)

nickel

e)

iron

34.

Fill a burette...

a)

Above eye level

b)

At eye level

c)

Below eye level

35.

We use phenolphthalein or methyl orange when carrying a titration because they have a...

(a)  

36.

Bond breaking is...

a)

Exothermic

b)

Endothermic

37.

Bond making is...

a)

Exothermic

b)

Endothermic

38.
a)

Reaction profile

b)

Energy level diagram

39.
a)

Reaction profile

b)

Energy level diagram

40.

Ethanol can be oxidised by...

a)

Complete combustion

b)

Microbial oxidation

c)

Heating with potassium dichromate(VI) in dilute sulphuric acid

d)

Burning in a mixture of oxygen and hydrocarbons

e)

Neutralisation with sodium hydroxide and hydrochloric acid

41.

What must ethanol be heated with in dilute sulphuric acid to form ethanoic acid?

(a)  

42.

The catalyst used to manufacture ethanol by reacting ethene with steam

(a)  

43.

What temperature must ethene be reacted with steam to manufacture ethanol?

(a)  

44.

What temperature must glucose be fermented at to manufacture ethanol?

(a)  

45.

What pressure must ethene be reacted with steam to manufacture ethanol?

(a)  

46.

Carboxylic acid (aq) + metal carbonate

a)

salt

b)

water

c)

carbon dioxide

d)

hydrogen gas

e)

metal salt

47.

Carboxylic acid (aq) + metal

a)

salt

b)

water

c)

carbon dioxide

d)

hydrogen gas

e)

metal salt

48.

An aqueous solution containing ethanoic acid

(a)  

49.

What must ethanol and ethanoic acid react in the presence of to form ethyl ethanoate?

(a)  

50.

Dicarboxylic acid + diol

a)

salt

b)

water

c)

carbon dioxide

d)

hydrogen gas

e)

polyester

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