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chemistry

Total questions: 58

Worksheet time: 34mins

Name
Class
Date
1.

What colour does litmus paper turn when added to an alkali?

a)

Blue

b)

Red

c)

Green

d)

Colourless

2.

What is the pH of distilled water?

a)

pH 12

b)

pH 3

c)

pH 8

d)

pH 7

3.

Which pH level indicates a weak acid?

a)

1-3

b)

4-6

c)

8-11

d)

12-14

4.

Which pH level indicates a weak alkali?

a)

1-3

b)

4-6

c)

8-11

d)

12-14

5.

Which pH level indicates a strong alkali?

a)

1-3

b)

4-6

c)

8-11

d)

12-14

6.

Alkalis feel...

a)

Rough

b)

Granulated

c)

Soapy

d)

Smooth

7.

Strong acids and alkalis are...

a)

Sour

b)

Sweet

c)

Corrosive/Caustic

d)

Burn litmus paper

8.
a)

PH scale

b)

pH ruler

c)

pH scale

d)

pH statistical tables

9.
What colour is universal indicator in a strong alkali?
a)
Green
b)
Orange
c)
Purple
d)
Red
10.
What colour is universal indicator in strong acid?
a)
Green
b)
Orange
c)
Purple
d)
Red
11.
What colour is universal indicator in strong acid?
a)
Green
b)
Orange
c)
Purple
d)
Red
12.

Strong acids and strong alkalis are.......

a)

Able to turn blue litmus paper red

b)

Corrosive

c)

Sour

d)

Sweet

13.

What does this warning symbol mean?

a)

Toxic

b)

Corrosive

c)

Flammable

d)

Irritant

14.

What does this warning symbol mean?

a)

Toxic

b)

Corrosive

c)

Flammable

d)

Irritant

15.

What does this warning symbol mean?

a)

Toxic

b)

Corrosive

c)

Flammable

d)

Irritant

16.

What colour is pH neutral?

a)

Yellow

b)

Orange

c)

Red

d)

Green

17.

Acid rain has the same pH value as vinegar

a)

True

b)

False

18.

An alkali can neutralize an acid

a)

False

b)

True

19.

Which of the following is INCORRECT for an acid?

a)

Sour taste

b)

pH is less than 7

c)

Turn red litmus solution blue

d)

Must contain H in the formula

20.

What is the meaning of the word 'acid'?

a)

Sour

b)

Bitter

c)

The ashes

d)

burn

21.

These acids originated from plants except:

a)

Citric acid

b)

Hydrochloric acid

c)

Tartaric acid

d)

Ascorbic acid

22.

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

a)

neutral

b)

acidic

c)

alkali

d)

blackcurrant juice

23.

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

a)

balancing

b)

extraction

c)

overcome

d)

neutralisation

24.
Since some acids seemingly "eat away" certain substances, acids are ____.
a)
bitter
b)
sliipery
c)
corrosive
d)
weak
25.
Bases are located where on the pH scale?
a)
any number can be a base
b)
below 7
c)
above 7
d)
number 7 is a base
26.
Bleach and oven cleaner are:
a)
strong acids
b)
weak acids
c)
strong bases
d)
weak bases
27.
A neutralization reaction will (almost) always produce...
a)
water & salt
b)
water
c)
salt
d)
water & carbon
28.

A type of chemical that forms solutions that taste sour, due to high concentrations of positive hydrogen ions

a)

acid

b)

base

c)

salt

d)

pH

29.
In a ____ reaction, an acid and a base produce a salt and a water. 
a)
concentrated
b)
decomposition
c)
dilute
d)
neutralization
30.
In a neutralization reaction, what are the products of a reaction between an acid and a base?
a)
Another acid and base
b)
Carbon dioxide and a salt
c)
Water and a salt
d)
Either two acids or two bases
31.
What is the range of pH values in an acidic solution?
a)
0-7
b)
7-14
c)
15-239058204958
d)
pH = 7
32.
The reactants of a neutralization reaction are acids and bases
a)
True
b)
False
33.

What is considered to be in the middle of the pH scale

a)

acidic

b)

neutral

c)

basic

d)

indicator

34.
If there is excess hydrogen ions, the solution will be...
a)
acidic
b)
basic
35.
If there is excess hydroxide ions, the solution will be...
a)
acidic
b)
basic
36.

Which is a MAJOR cause of acid rain?

a)

spraying pesticides on crops

b)

burning fossil fuels for energy

c)

dumping sewage in rivers

d)

using Nuclear power stations

37.

Which is NOT caused by acid rain?

a)

damage to statues

b)

dying fish

c)

spread of disease

d)

weakened trees

38.
How is acid rain formed?
a)
Carbon monoxide and carbon dioxide mix with water in the ocean.
b)
Carbon dioxide and oxygen mix with water in the air.
c)
Sulfur dioxide and carbon monoxide mix with lake water.
d)
Sulfur dioxide and nitrogen oxide mix with water in the air.
39.

Which is a result of human activities?

a)

decay of leaves in a forest

b)

acid rain kills fish in a lake

c)

volcanic eruptions

d)

bad weather

40.

Which does NOT cause acid rain?

a)

erupting volcanoes

b)

burning fossil fuels - coal, oil, gas

c)

electric cars

d)

car engines

41.
Which of these contributes to acid rain?
a)
HCl
b)
NaOH
c)
CaO
d)
SO2
42.

Acid rain has a pH LESS than

a)

6

b)

7

c)

8

d)

3

43.

How does acid rain affect humans?

a)

air pollution gets into our lungs and water

b)

It burns our clothes

c)

it makes us blind

d)

it makes us blonde

44.

What human activity is the main cause of acid rain?

a)

cars

b)

deforestation

c)

coal power plants / power stations

d)

volcanoes

45.

Using fossil fuels reduce acid rain

a)

True

b)

False

46.

What can you do to reduce acid rain?

a)

Use renewable resources

b)

Drive more

c)

Cut down trees

d)

Eat less meat

47.

Acid rain can damage

a)

Drinking water sources

b)

Aquatic (water) life

c)

Architecture / buildings

d)

All options are correct

48.

When sediments are pressed together tightly, this is called ____________.

a)

Compaction

b)

Cementation

c)

Weathering

d)

Erosion

49.

The process in which sediment are fused or glued together.

a)

compaction

b)

deposition

c)

organic rock

d)

cementation

50.
This rock was formed when molten rock cooled into a solid. What type of rock is it?
a)
Igneous Rock
b)
Metamorphic Rock
c)
Sedimentary Rock
51.
Which type of rock is formed from INTENSE heat and pressure?
a)
igneous
b)
sedimentary
c)
metamorphic
52.
This rock was molten magma that slowly cooled under the ground. What type of rock is this?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
53.
Fossils are only found in
a)
Sedimentary rocks
b)
Foliated Metamorphic rocks
c)
Igneous Rocks
d)
Nonfoliated Metamorphic rocks
54.
The cooled and hardened magma from volcanoes form what rocks?
a)
igneous
b)
sedimentary
c)
metamorphic 
d)
fossils
55.
Large rocks can be broken down into smaller rocks by wind and water.  These small rocks can break down into very tiny pieces called _______.
a)
minerals
b)
pebbles
c)
sediments
d)
chalk
56.
1. What will happen if an igneous rock is put under an extreme amount of heat and pressure?
a)
it will melt into lava
b)
it will weather and erode
c)
it will become a metamorphic rock
d)
it will become a sedimentary 
57.
You can see layers in this rock.  Could be sand, or pebbles.
a)
Sedimentary
b)
Igneous
c)
Metamorphic
d)
Sand Rock
58.
This type of Rock is the MOST common in the Earth's Crust?
a)
Sedimentary
b)
Igneous
c)
Metamorphic
d)
Common Rock

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