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Year 10 Mock exam Revision

Total questions: 62

Worksheet time: 36mins

Name
Class
Date
1.

Ba

a)

Compound

b)

Element

c)

Mixture

2.

KCl2

a)

Compound

b)

Element

c)

Mixture

3.

H

a)

Compound

b)

Element

c)

Mixture

4.

Salt (NaCl)

a)

Compound

b)

Element

c)

Mixture

5.

What type of matter is this?

a)

compound

b)

element

c)

mixture

6.

What type of matter is this?

a)

compound

b)

element

c)

mixture

7.

What type of matter is this?

a)

compound

b)

element

c)

mixture

8.

The formula of copper(II) oxide is

a)

CuO

b)

Cu2O

c)

CuO2

9.

The formula of magnesium chloride is

a)

MgCl

b)

MgCl2

c)

MgCl3

10.

The formula of calcium hydroxide is

a)

CaOH

b)

Ca(OH)2

c)

Ca(OH)3

11.

The formula of sodium carbonate is

a)

NaCO3

b)

Na(CO3)2

c)

Na2CO3

12.

The formula of iron(II) hydroxide is

a)

FeOH2

b)

FeOH

c)

Fe(OH)2

d)

Fe(OH)3

13.

The formula of ammonium ion is

a)

NH3

b)

NH3+

c)

NH4

d)

NH4+

14.

The formula of silver nitrate is

a)

AgNO3

b)

Ag2NO3

c)

Ag(NO3)2

15.

The formula of sodium sulphate is

a)

NaSO4

b)

Na2SO4

c)

Na(SO4)2

d)

Na2(SO4)3

16.

Which alkali metal is most reactive out of the following

a)

rubidium

b)

potassium

c)

sodium

d)

lithium

17.

How many electrons do the alkali metals have in their outer shell?

a)

1

b)

2

c)

8

d)

7

18.

Is hydrogen an alkali metal?

a)

no

b)

yes

c)

maybe

19.

What happens to the melting point of the alkali metals as you move down the group?

a)

decreases

b)

increases

20.

Which gas is released when the alkali metals react with water?

a)

hydrogen

b)

oxygen

c)

hydroxide

d)

carbon dioxide

21.

What is the charge of a group 1 metal ion?

a)

1+

b)

2+

c)

1-

d)

2-

22.

Which of the following is NOT a property of group 1 metals?

a)

More dense than water

b)

less dense than water

c)

low melting point

d)

soft

23.

Which alkali metal is the least reactive?

a)

lithium

b)

sodium

c)

potassium

d)

rubidium

24.

How many protons does a sodium atom have?

a)

11

b)

23

c)

12

25.

How many electrons does a sodium atom have?>

a)

11

b)

23

c)

12

26.

It has yellow color if you conduct flame test to this element. This element is ...

a)

Lithium

b)

Sodium

c)

Potassium

d)

Rubidium

27.

Which group of the periodic table are alkali metals found in?

a)

Group 1

b)

Group 2

c)

Group 7

d)

Group 8

28.

Which of the followings is the most reactive alkali metal in water?

a)

Lithium

b)

Sodium

c)

Potassium

d)

Hydrogen

29.

What is formed when sodium reacts with water?

a)

Sodium oxide and hydrogen

b)

Sodium hydroxide and hydrogen

c)

Sodium hydroxide and oxygen

d)

Sodium hydroxide and carbon dioxide

30.

What is the symbol equation for the reaction between Potassium and water?

a)

2K + 2H2O → 2KOH + H2

b)

2Na + 2H2O → 2NaOH + H

c)

2K + H2O → 2KOH + CO2

d)

2Na + 2H2O → 2NaOH + CO2

31.
How can you test to show that when a metal reacts with water, hydrogen gas is produced?
a)
Relights a glowing splint
b)
A lit splint produces a squeaky pop
c)
Puts out a burning splint
d)
Is cold to the touch
32.

What is the atomic number?

a)

the number of protons in the nucleus

b)

the number of protons and neutrons in the nucleus

c)

the number of neutrons in the nucleus

d)

the number of protons in the energy levels

33.

What is the mass number?

a)

the number of protons in the nucleus

b)

the number of protons and neutrons in the nucleus

c)

the number of neutrons in the nucleus

d)

the number of protons and electrons in the atom

34.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

35.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

36.
Most of the mass in an atom is made up of _____________________?
a)
protons and electrons
b)
protons and neutrons
c)
neutrons and electrons
d)
electrons and quarks
37.

The removal of salt from brackish or ocean water is known as:

a)

denitrification

b)

desalination

c)

re-salination

d)

hyper salination

38.
What word means the solid particles that have settled out during the sedimentation process.
a)
sediment
b)
solubility
c)
settlement
d)
solidifying
39.

Which substance is used in a sewage treatment system to kill harmful bacteria?

a)

ammonia

b)

chlorine

c)

sand

d)

soap

40.
What does chlorination do to the water?
a)
Removes microorganisms
b)
Cleans the water
c)
Makes the water taste nice
d)
Removes twigs and sediment
41.

Fluoride can naturally be found in water

a)

True

b)

False

42.

water changing from liquid to vapor

a)

sublimation

b)

condensation

c)

evaporation

43.

Complete the following sentence "Hard water is water that

a)

forms a lather easily with water.

b)

does not form a lather easily with water

44.

Which of the following compounds are responsible for causing temporary hardness in water?

a)

CaCl2

b)

Ca(HCO3)2

c)

CaSO4

d)

Mg(HCO3)2

45.

_________ hardness can be removed by boiling while __________ hardness cannot by removed by boiling.

(a)  

46.

Which of the following would be considered to be caused by temporary hardness in water?

a)

Blocking of pipes with limescale

b)

Furring of kettles

c)

Scum formation when using soap

d)

Coating of heating element of dishwasher, shower, washing machine with limescale

47.

Which of the following are methods used to remove permanent hardness in water?

a)

Distillation

b)

Adding washing soda crystals

c)

Boiling the water

d)

Using an ion exchange resin

48.

The removal of temporary hardness in water that is heated, is represented by which of the following equations?

a)

H2O + CO2 ➡️ H2CO3

b)

H2CO3 + CaCO3 ➡️ Ca(HCO3)2

c)

Ca(HCO3)2 ➡️ CaCO3 + CO2 + H2O

49.

When cold water containing temporary hardness is heated, an insoluble substance precipitates out of the water. What is the formula for this insoluble precipitate?

a)

CaCO3

b)

CaCO3

c)

CO2

d)

H2O

50.
Which of these is not a noble gas?
a)
Helium
b)
Argon
c)
Nitrogen
d)
Krypton
51.

6.15: Which of these is not a property of noble gases?

a)

Colourless

b)

Odourless

c)

Flammable

d)

Gas at room temperature

52.

The reason that Noble Gases do not react is because

a)

Their outer electron shell is filled

b)

Their inner electron shell is filled

c)

They are able to bond to fill their outer shell

d)

None of the above, Noble Gases are highly reactive

53.
Another term for being chemically inactive is...
a)
Inert
b)
Inbert
c)
Insert
d)
Inmert
54.

Which of the "Halogens" is found in liquid state at room temperature?

a)

Flourine

b)

Astatine

c)

Iodine

d)

Bromine

55.

What group are the Halogens?

a)

6.9

b)

7

c)

8

d)

3

56.

All Halogens are Toxic.

a)

True

b)

False

57.

How many electrons do Halogens have in their outer shell?

a)

0

b)

1

c)

6

d)

7

58.

Which equation shows the displacement of bromine by chlorine?

a)

2NaBr + Cl2 → 2NaCl + Br-

b)

NaBr + Cl- → NaCl + Br2

c)

2NaBr + Cl2 → 2NaCl + Br2

d)

NaBr + 2Cl- → NaCl + 2Br-

59.

As you move down the group, halogens' reactivity...

a)

increases

b)

decreases

c)

doesn't change

d)

shows no trend.

60.

Which halogens can displace bromide ions to make bromine?

a)

Fluorine and iodine.

b)

Fluorine and bromine.

c)

Fluorine and chlorine

d)

Chlorine and iodine.

61.

A displacement reaction involves...

a)

a solution turning brown or yellow.

b)

a less reactive element taking the place of a more reactive element.

c)

a dislocated hip.

d)

a more reactive element taking the place of a less reactive element.

62.

Would a displacement reaction occur for Bromine + Potassium Iodide?

a)

Yes

b)

No

c)

Maybe

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