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Chemistry Revision Quiz SA

Total questions: 64

Worksheet time: 34mins

Name
Class
Date
1.

Which contains only elements?

a)

A

b)

B

c)

C

d)

D

2.

Which contains a pure substance? (Choose all)

a)

A

b)

B

c)

C

d)

D

3.

Which contains a mixture? (Choose all)

a)

A

b)

B

4.

Which contains a solution? (Choose all)

a)

A

b)

B

c)

None are solutions

5.

Which contains a solid? (Choose all)

a)

A

b)

B

c)

C

d)

D

6.

Which contains a pure substance? (Choose all)

a)

A

b)

B

c)

C

d)

D

7.

What type of change is this?

a)

Chemical

b)

Melting

c)

Evaporation

d)

Condensation

e)

Sublimation

8.

Which contains only elements (no compounds)? (Choose all)

a)

A

b)

B

c)

C

9.

What type of change?

a)

Chemical

b)

Evaporation

c)

Condensation

d)

Sublimation

e)

Melting

10.

Which is a heterogeneous mixture? (Choose all)

a)

1

b)

2

c)

3

d)

4

11.
Referring to the table, what is the relative mass of a proton?
a)
10
b)
1
c)
0.1
d)
0.01
12.
Referring to the table, what is the relative mass of an electron?
a)
5
b)
1
c)
0.5
d)
0.0005
13.
Referring to the table, what is the relative charge of an electron?
a)
+1
b)
0
c)
-1
d)
-0.5
14.
Referring to the table, what is the relative charge of a neutron?
a)
+1
b)
0
c)
-1
d)
-0.5
15.
Referring to the table, what is the relative charge of a proton?
a)
+1
b)
0
c)
-1
d)
-0.5
16.
The number in the upper corner of an element tile (7 for nitrogen) is called _____
a)
the proton number
b)
the atomic number
c)
the electron number
d)
the mass number
17.
For a given element, the atomic number indicates the number of _____
a)
protons in the nucleus
b)
neutron in the nucleus
c)
electrons in the atom
d)
nucleons in the atom
18.
If an atom contains exactly three protons, then it's an atom of _____
a)
lithium
b)
gold
c)
nitrogen
d)
carbon
19.
For an atom to be electrically neutral, it must contain the same number of _____
a)
protons and neutrons
b)
neutrons and electrons
c)
protons and electrons
d)
nucleons and electrons
20.
The sum of the number of protons and the number of neutrons is called the _____
a)
atomic number
b)
mass number
c)
isotope number
d)
average weight
21.
The middle of the atom, which contains protons and neutrons, is called _____
a)
the shell
b)
the nucleus
c)
the cell
d)
the control center
22.
The nucleus contains _____
a)
only protons
b)
protons and neutrons
c)
protons and electrons
d)
electrons and neutrons
23.
In the Bohr model of the atom, electrons can only be in certain _____
a)
shells
b)
nuclei
c)
frames
d)
circles
24.
In the Bohr model of the atom, what is the maximum number of electrons in the first shell?
a)
1
b)
2
c)
6
d)
8
25.
In the Bohr model of the atom, what is the maximum number of electrons in the second shell?
a)
2
b)
6
c)
8
d)
18
26.
How many Protons+Neutrons are in one atom of Lithium?
a)
6.941
b)
7
c)
3
d)
6
27.
How many Neutrons are in one atom of Lithium?
a)
6.941
b)
7
c)
3
d)
4
28.
How many Protons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
29.
How many Electrons are in one atom of Lithium?
a)
3
b)
6
c)
7
d)
6.941
30.

What is the meaning of the word 'acid'?

a)

Sour

b)

Bitter

c)

The ashes

d)

burn

31.

What does the word 'alkali' means

a)

bitter

b)

The ashes

c)

sour

d)

burn

32.

These acids originated from plants except:

a)

Citric acid

b)

Hydrochloric acid

c)

Tartaric acid

d)

Ascorbic acid

33.

These acids are correctly matched with its system in human body, except:

a)

hydrochloric acid - digestive system

b)

lactic acid - circulatory system

c)

uric acid - excretory system

34.

Where does the sour taste of vinegar comes from?

a)

nitric acid

b)

lactic acid

c)

ethanoic acid

d)

hydrochloric acid

35.

These acids are mineral acid except?

a)

hydrochloric acid

b)

nitric acid

c)

ethanoic acid

d)

nitric acid

36.

What is the first use of mineral acid?

a)

To separate silver and gold.

b)

To hurt people.

c)

To produce cleaning product.

d)

To separate acids and alkalis

37.

Calcium hydroxide also known as _________.

a)

quick lime

b)

slaked lime

c)

limewater

d)

lime juice

38.

These house hold items were made of ____________.

a)

acids

b)

alkalis

39.

What is the colour of litmus solution?

a)

blue

b)

purple

c)

green

d)

pink

40.

Litmus solution is extracted from _____________.

a)

lincent

b)

litchen

c)

lichen

d)

licen

41.

A purple colour when using universal indicator indicates the solution is _______________.

a)

neutral

b)

acidic

c)

alkali

d)

blackcurrant juice

42.

When sulfuric acid react with potassium hydroxide, what will be the product?

a)

sodium chloride and water

b)

potassium sulfate and water

c)

sodium nitrate and water

d)

carbon dioxide and water

43.

What is the range of pH scale?

a)

0 -14

b)

1 - 14

c)

1 - 6

d)

12 - 14

44.

What is the uses of calcium hydroxide in the soil?

a)

used to neutralise the acidity of the soil

b)

used to produce carbon dioxide

c)

used to give a lighter texture to the soil

d)

to make the soil more acidic

45.

The process of dissolving soil minerals and carries them away by acid rain is also known as

a)

leaching

b)

collecting

c)

draining

d)

extracting

46.

An alkali is able to “cancel” out an acid. This process is also known as?

a)

balancing

b)

extraction

c)

overcome

d)

neutralisation

47.

In an experiment some pupils found that baking soda had a pH of about 9. Some people claim this substance can be used to treat bee stings. Bee stings must be

a)

acidic

b)

alkaline

c)

neutral

d)

life threatening

48.

Milk of magnesia is a medicine used to treat indigestion. Milk of magnesia is most likely to be

a)

alkali

b)

neutral

c)

from a cow

d)

acidic

49.

Rivers and lakes that have become acidic due to acid rain can be treated with _________ .

a)

calcium hydroxide

b)

sodium chloride

c)

potassium chloride

d)

hydrochloric acid

50.
What is the hazard shown in this hazard sign?
a)
Fire
b)
Goku
c)
Flammable
d)
Inflammable
51.
What is the hazard shown in this hazard sign?
a)
Explosive
b)
Corrosive
c)
Irritant
d)
High level Irritant
52.
What is the hazard shown in this hazard sign?
a)
Pikachu
b)
Lightning
c)
Electrical
d)
Fault
53.

What does this symbol stand for?

a)

Flammable

b)

Oxidising

c)

Non-flammable

d)

Explosive

54.

Match the symbol to the correlating hazard


EXPLOSIVES

a)
b)
c)
d)
55.

This lab student is wearing her googles and an apron. But what is she doing wrong?

a)

Pointing the test tube toward her while heating it.

b)

She actually is doing everything correctly.

c)

Her loose hair is too close to the fire.

d)

Not paying attention

56.

What does this hazard symbol mean?

a)

Harmless to trees and fish

b)

Harmful to non living things

c)

Harmful to living things

d)

Harmless to non living things

57.

What does this hazard symbol mean?

a)

flammable

b)

oxidising

c)

hot

d)

explosive

58.

What does this hazard symbol mean?

a)

cross

b)

harmful / irritant

c)

sharp

d)

chemical

59.
a)
Poison/Toxic
b)
Bio Hazard
c)
Radioactive
d)
Corrosive
60.

What does this symbol indicate?

a)

Corrosive substances

b)

Wash your hands.

c)

Wear appropriate gloves.

d)

Bacteria are present.

61.

Which symbol means that a substance is acutely toxic?

a)
b)
c)
d)
62.

We should not taste chemical substances as they are

a)

Corrosive

b)

Harmful

c)

Toxic

63.

It is not safe to touch chemical materials as they are

a)

poisonous

b)

Harmful

c)

Corrosive as they burn or damage skin

d)

Oxidizing

64.

Some chemicals cause skin rash as they are ..........

a)

Poisonous

b)

flammable

c)

Irritant

d)

oxidizing

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