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Mock Paper 2

Total questions: 60

Worksheet time: 57mins

Name
Class
Date
1.

Putting a glowing splint into a tube of gas and seeing the splint re-light is the test for which gas?

4 lines
2.

Holding damp litmus paper in a tube of the gas and seeing it bleach white is the test for which gas?

4 lines
3.

Adding nitric acid and silver nitrate is the test for which type of ion?

4 lines
4.

Adding hydrochloric acid and barium chloride is the test for which type of ion?

4 lines
5.

What colour would calcium go in the flame test?

a)

Purple

b)

Green

c)

Yellow

d)

Red

6.

What colour would potassium go in the flame test?

a)

Purple

b)

Green

c)

Yellow

d)

Red

7.

What colour would copper go in the flame test?

a)

Purple

b)

Green

c)

Yellow

d)

Red

8.

What colour would a bromide ion go when tested using silver nitrate and nitric acid?

a)

White

b)

Cream

c)

Yellow

9.

How do you distinguish between aluminium and calcium in the precipitate test?

a)

Add excess sodium hydroxide

b)

Add two drops of sodium hydroxide

c)

Add excess hydrochloric acid

d)

Heat

10.

Which type of ion is tested for using the flame test?

a)

Anion

b)

Cation

11.

What colour does copper turn when sodium hydroxide is added?

a)

Blue

b)

Green

c)

Purple

d)

Brown

12.

What can be added to a carbonate to produce carbon dioxide?

a)

Any acid

b)

Any alkali

c)

Sulphuric acid

d)

Sodium Hydroxide

13.

What colour precipitate would be formed when a sulphate is present, if hydrochloric acid and barium chloride are added?

a)

Colourless

b)

White

c)

Blue

d)

Green

14.

What is the formula of a hydroxide ion?

a)

H+

b)

H-

c)

OH-

d)

OH+

15.

What is a hydrocarbon?

a)

A compound that contains Hydrogen and carbon

b)

A compound that contains Hydrogen and carbon only

c)

A fuel that contains hydrogen and carbon

d)

A misture of Carbon and water

16.

What does the following sentence describe:

A compound in which there are only single bonds between the atoms in the molecule

a)

Saturated compound

b)

Polar compound

c)

Flamable compound

d)

Aromatic compound

17.

Name this molecule

a)

Methane

b)

Ethane

c)

Propane

d)

Butane

18.

This molecule is an example of

a)

A saturated compound

b)

An unsaturated compound

c)

A molecule with hydrogen bonds

d)

A molecule with a very low octane number

19.

Which of the following is the general formula for the alkanes

a)

CnH2n+2

b)

CnH2n

c)

CnHn

d)

CH4

20.

As the chain length of an alkane increases, the boiling point.....

a)

Increases

b)

Decreases

c)

Is not affected

21.

The molecules in the example are examples of

a)

Isomers

b)

Isotopes

c)

Alkenes

d)

Alkynes

22.

The molecule shown is an isomer of:

a)

Butane

b)

Butene

c)

Propene

d)

Propane

23.

Ethene is tested for unsaturation using:

a)

Bromine water

b)

Litmus

c)

Concentrated sulphuric acidSulphuric

d)

A lit splint

24.

The image shows Fractional distillation but which of the following is a use of Naphta:

a)

Fuel for shipping

b)

Jet fuel

c)

Creation of plastics

d)

Lubrication

25.

The image shows Fractional distillation but which of the following is a use of kerosine:

a)

Fuel for shipping

b)

Jet fuel

c)

Creation of plastics

d)

Lubrication

26.

This reaction produces Carbon Dioxide & Water.

a)

Combustion

b)

Esterfication

c)

Single Replacement

d)

Substitution

27.

The process that is used to produce alcohol.

a)

Esterification

b)

Fermentation

c)

Saponification

d)

Condensation Polymerization

28.

What type of reaction is represent by the following equation?

a)

Condensation Polymerization

b)

Addition Polymerization

c)

Esterification

d)

Saponification

29.

Several molecules of propene, C3H6, combine to form a single large molecule. The process is an example of

a)

polymerization

b)

substitution

c)

saponification

d)

fermentation

30.

Esterification is a reaction of an acid with

a)

alcohol

b)

water

c)

ester

d)

base

31.
a)
addition
b)
polymerization
c)
esterification
d)
fermentation
32.

Why does a higher temperature increase the rate of a reaction?

a)

it increases both the frequency and energy of particle collisions

b)

it only increases the frequency of particle collisions

c)

it only increases the energy of particle collisions

d)

it reduces the activation energy of the reaction

33.

Grinding a effervescent tablet into powder increases the rate of reaction due to increased

a)

concentration

b)

surface area

c)

temperature

d)

reactants

34.

Adding a catalyst ___________ the activation energy.

a)

Raises

b)

Lowers

c)

Doesn't affect

d)

Inreases

35.

The minimum amount of energy needed for colliding particles to react is called

a)

Chemical Energy

b)

Kinetic Energy

c)

Activation Energy

d)

Potential Energy

36.

Which graph shows the effect of increasing temperature on the rate of reaction of calcium carbonate with dilute hydrochloric acid?

a)
b)
c)
d)
37.
The graph shows how the total volume of a gas given off from a reaction changes with time. In which time interval is least gas given off? 
a)
A
b)
B
c)
C
d)
D
38.
In an experiment, a 2 g lump of zinc and 2 g of powdered zinc are added separately to equal volumes of dilute sulphuric acid. The solid line on the graph shows the volume of gas given off when the 2 g lump is used. Which dotted line is obtained when the zinc is powdered? 
a)
A
b)
B
c)
C
d)
D
39.
Order the letters from highest to lowest rate of reaction.
a)
A > B > C > D
b)
A > BC > D (B and C have the same rate)
c)
A > B > CD (C and D have the same rate)
d)
D > C > B > A
40.
Why does a catalyst increase the rate of reaction?
a)
it produces extra energy for the reactants
b)
it increases the speed of the reactant particles
c)
it increases the frequency of particle collisions
d)
it reduces the activation energy of the reaction 
41.

How could we make this reaction happen more quickly?

a)

Decrease the concentration of the acid

b)

crush the chalk to increase the surface area

c)

Put the test tube in an ice bath

42.
The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?
a)
Red, because the activation energy is larger
b)
Blue, because the activation energy is lower
c)
both reaction progress at the same rate
43.
Which letter corresponds to the activation energy of the forward reaction?
a)
A
b)
B
c)
C
d)
D
44.

Which is true about the chemical energy changes?

a)

A

b)

B

c)

C

d)

D

45.

The reaction profile for making nitrogen monoxide, NO, is shown below. What is the activation energy for this reaction ?

a)

+140 kJ

b)

+180 kJ

c)

+320 kJ

d)

-330 kJ

46.

What is the value of X ?

a)

67 kJ

b)

134 kJ

c)

346 kJ

d)

542 kJ

47.

How much energy is needed to break all the bonds in 0.025 g of nitrogen gas? Relative atomic mass (Ar): N = 14

a)

1701 J

b)

1701 kJ

c)

844 J

d)

844 kJ

48.

Using the balanced equation below

2Ca + O2 --> 2CaO

Predict the number of particles of Ca

a)

6.02x1023

b)

1.204x1024

c)

6.02x1022

d)

1.204x1023

49.

6.0 mol of aluminium reacts with oxygen to form aluminium oxide. What is the amount of oxygen, in mol, needed for complete reaction?

4Al(s) + 3O2(g) → 2Al2O3(s)

a)

1.5

b)

3.0

c)

4.5

d)

6.0

50.
CH4 + 2O2 --> 2H2O + CO2
What is the mass of CO2 produced when 35g of O2 reacts? 
a)
1.09 g
b)
24.1 g
c)
28.2 g
d)
44.0 g
51.

Gas grills use propane fuel. The combustion of propane is represented in this equation:

C3H8 + 5O2 ----> 3CO2 + 4H2O. How many grams of propane will burn when 36.0 moles of water are formed?

a)

0.500 g C3H8

b)

9.00 g C3H8

c)

318 g C3H8

d)

397 g C3H8

52.
For the Balanced Reaction: 3 Mg + 1 Fe2O3 → 3 MgO + 2 Fe; What is the Ratio of moles of MgO to moles Fe?
a)
3mol Mg / 2 mol Fe
b)
2 mol Mg/ 3 mol Fe
c)
1 mol Fe/ 2 mol Fe
d)
3 mol MgO / 2 mol Fe
53.
2Na + 2H2O → 2NaOH+ H2
How many grams of hydrogen are produced if 120 g of Na are available?
a)
5.2 g
b)
2.6 g
c)
690 g
d)
45 g
54.
4 Al + 3 O2 –> 2 Al2O3  How much aluminum would be needed to completely react with 45 grams of O2?
a)
1.05 moles
b)
3.75 moles
c)
1.875 grams
d)
1.875 moles
55.

Examine the image: How many bonds are formed looking at the model of the compound? And also indetify what type of bond is formed.

a)

2 bonds; covalent

b)

4 bonds; metallic

c)

2 bonds; ionic

d)

4 bonds; covalent

56.

Predict the bond that form between Be and F

a)

Covalent

b)

Ionic

57.

If an atom loses two electrons what charge will it have?

a)

-1

b)

-2

c)

+1

d)

+2

58.
If an atom gains two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2
59.
Predict the bond that will form between Se and Cl.
a)
Ionic
b)
Covalent
60.

An atom with a different number of electrons than it should have (more or less) is called an ---

a)

isotope

b)

valence electron

c)

ion

d)

octet

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