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Assessment 2 quiz

Total questions: 182

Worksheet time: 3hrs 49mins

Name
Class
Date
1.

(a)   is the process in which carbon dioxide and water combine, using energy from the Sun, to make sugar and oxygen.

2.

Cellular ​ (a)   is the chemical ​ (b)   in which stored energy is ​ (c)   down so it can be used by ​ (d)   to survive when there is no food source available.​

Choose from the below words
respiration
resilience
process
product
broken
created
organisms
humans
3.

​ (a)   is a substance that is made from ​ (b)   atoms and ​ (c)   atom and is needed to sustain life.

Choose from the below words
Reactants
Water
two hydrogen
two oxygen
one oxygen
one carbon
4.

​ (a)   is a gas that contains ​ (b)   atom and ​ (c)   atoms​

Choose from the below words
Carbon dioxide
Hydrogen oxide
one carbon
two carbon
two oxygen
one oxygen
5.

What is a group of atoms bonded together?

a)

Products

b)

Molecule

c)

Microorganism

d)

Reactants

6.

​ (a)   is a ​ (b)   that uses the process of ​ (c)   to make food and is often called blue-green algae.

Choose from the below words
Cyanobacteria
Canoebacteria
microorganism
organism
photosynthesis
consuming
7.

What is a substance that is a part of a reaction and goes through a change?

a)

Reactants

b)

Product

c)

Molecule

d)

Chloroplasts

8.

What is a substance that is formed after a reaction has occured?

a)

Autotroph

b)

Consumer

c)

Product

d)

Heterotroph

9.

​ (a)   are an ​ (b)   (part of a cell) that contains ​ (c)   and where photosynthesis takes place.

Choose from the below words
Chloroplast
Cyanobacteria
organelle
atom
chlorophyll
organisms
10.

Law of conservation of mass states that mass is neither ​ (a)   nor ​ (b)   in chemical reactions.

Choose from the below words
created
burned
destroyed
found
11.

What part of a plant is adapted for photosynthesis?

a)

Flowers

b)

Roots

c)

Stem

d)

Leaves

12.

What is the reactant of a reaction?

a)

Something made in a reaction.

b)

Something going into a reaction (an 'ingredient').

13.

Select the two reactants of photosynthesis

a)

Carbon Dioxide

b)

Oxygen

c)

Water

d)

Glucose

e)

Chlorophyll

14.

What is the product of a reaction?

a)

Something made in a reaction.

b)

Something going into a reaction (an 'ingredient').

15.

What are the two products of photosynthesis?

a)

Glucose

b)

Oxygen

c)

Carbon Dioxide

d)

Water

e)

Light

16.

What part of the plant absorbs water from the soil?

a)

Roots

b)

Leaves

c)

Stem

d)

Flowers

17.

How is water transported from the roots to the leaves?

a)

Up the xylem

b)

Up the phloem

c)

Through the stomata

18.

What is the energy source for photosynthesis?

a)

Light

b)

Heat

c)

Water

d)

Electricity

19.

Photosynthesis allows a plant to make its own (a)   .

20.

What are the stomata?

a)

A type of flower

b)

Tiny holes on the bottom of a leaf.

c)

A type of leaf.

d)

Another word for roots.

21.

How does carbon dioxide get into the leaf?

a)

Through the veins

b)

Through the roots

c)

Up the phloem

d)

Up the xylem

e)

Through the stomata

22.

What is the test that we can do to check whether photosynthesis has happened?

a)

The starch test

b)

The sugar test

c)

The protein test

d)

The lipids test

23.

What does a positive result in the starch test look like?

a)

The leaf turns black-blue

b)

The leaf turns white

c)

The leaf stays green

d)

The leaf turns yellow-brown

24.

What chemical do we drop onto a leaf to test for starch?

a)

Iodine

b)

Ethanol

c)

Hydrochloric Acid

d)

pH indicator

25.

What does a negative result in the starch test look like?

a)

The leaf turns black-blue

b)

The leaf turns white

c)

The leaf stays green

d)

The leaf turns yellow-brown

26.

What is the function of chlorophyll??

a)

To absorb light

b)

To absorb heat

c)

To absorb water

d)

To absorb oxygen

27.

Select all adaptions leaves have from the list below.

a)

They have a large surface area

b)

They are thin

c)

They have lots of chloroplasts

d)

They have veins

e)

They are thick

28.
What is the pigment in chloroplasts that performs photosynthesis?
a)
Chlorosynthesis
b)
Chlorophyll
c)
ADP
d)
Electron Transport
29.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
30.
Plants need ________ for photosynthesis
a)
oxygen
b)
soil
c)
carbon dioxide
d)
sugar
31.
What is photosynthesis?
a)
The process in which humans eat their food
b)
When a photographer takes a photo.
c)
To get your pictures from the photo lab.
d)
The process in which plants make their food.
32.
When it is chilly and raining outside, there is no photosynthesis taking place. What is the limiting factor?
a)
Temperature
b)
Rainfall
c)
Carbon Dioxide
33.
What is a limiting factor?
a)
The factor which increases the rate of a reaction
b)
The factor that limits the reaction rate
c)
The factor that limits the rate at which an enzyme is destroyed
34.
Which of these will not affect photosynthesis?
a)
Light
b)
Temperature
c)
Glucose Availability
d)
Carbon Dioxide
35.
If a plant receives more carbon dioxide, what happens to the rate of photosynthesis?
a)
Increases
b)
Decreases
c)
Stays the same
36.
Which of the following would have affect the rate of photosynthesis?
a)
amount of water
b)
carbon dioxide concentration
c)
temperature
d)
all of these
37.

Which lettered graph represents the affect of light intensity on photosynthetic rate?

a)

A

b)

B

c)

C

d)

D

38.
What is the correct equation for photosynthesis?
a)
Carbon Dioxide + Water + Light --> Glucose + Oxygen
b)
Light + Carbon Dioxide --> Water + Glucose + Oxygen
c)
Carbon Dioxide + Glucose + Light --> Water + Oxygen
39.

Look at the diagram. Which gas would most likely be found in the greatest amount in the bubbles?
a)
oxygen
b)
nitrogen
c)
ozone
d)
carbon dioxide
40.

Which lettered graph represents the effect of temperature on photosynthetic rate?

a)

A

b)

B

c)

C

d)

D

41.
What will happen to the photosynthesis rate if you increase the intensity of light?
a)
Photosynthesis rate will increase.
b)
Photosynthesis rate will decrease.
c)
Photosynthesis rate will remain the same.
d)
Photosynthesis will stop.
42.
Glucose (sugar) is also produced during photosynthesis. What do plants use glucose for?
a)
Source of energy.
b)
Supports plant growth and development.
c)
Keeps plants warm.
d)
Prevents plants from dying.
43.
How does temperature affects photosynthesis rate?
a)
As temperature increases, photosynthesis rate also increases.
b)
As temperature decreases, photosynthesis rate also decreases.
c)
Plants cannot photosynthesis if the temperature is too cold or too hot. 
d)
All of the statements are true.
44.
How is the leaf adapted to do photosynthesis?
a)
The leaf's upper layer is thin and transparent to allow light to pass through.
b)
The leaf's palisade layer has the most chloroplast to absorb the maximum amount of light possible.
c)
The leaf's lower layer has many stomata to allow gases to diffuse.
d)
All of the descriptions above are true.
45.
This diagram is a leaf cell. Which of the following refers to letter D?
a)
Nucleus
b)
Vacuole
c)
Chloroplast
d)
Cell wall
46.
A spring has a spring constant of 330 N/m.  How far is the spring compressed if 150 N of force are used?
a)
2.2 m
b)
0.0014 m
c)
5.0 m
d)
0.45 m
47.
A force of 470 N is applied to stretch a spring which has a spring constant, k=1100 N/m.  How much does the spring stretch past its free length?
a)
0.214 m
b)
2.34 m
c)
0.427 m
d)
5.17 X 10^5 m
48.
What force should be applied to compress a spring by 0.013 m if its spring constant is k = 1900 N/m?
a)
1880 N
b)
24.7 N
c)
1900 N
d)
0.127 N
49.
Hooke's Law fails when a material reaches its:
a)
breakdown
b)
elastic limit
c)
end of tether
d)
fracture stress
50.
If F is force, k is spring constant and x is extension, Hooke's Law tells us that:
a)
F=k/x
b)
x=Fk
c)
k=Fx
d)
F=kx
51.
Hooke's Law describes the behaviour of which kind of material under tension?
a)
plastic
b)
metals only
c)
elastic
d)
non-metals only
52.
A graph of extension against force for an elastic material is:
a)
A downward curve
b)
An upward curve
c)
A straight line from any point on the x and y axis
d)
A straight line from the origin
53.
A spring has a spring constant of 5N/cm.  What is its extension when loaded with 15N?
a)
4cm
b)
5cm
c)
3m
d)
3cm
54.
A spring extends 1.5m under load 10N. What is its spring constant?
a)
0.15N/m
b)
10N/m
c)
6.7N/m
d)
15N/m
55.
If the Earth's gravitational field strength is 10N/kg, how much weight does a 100g mass have in Newtons?
a)
100g
b)
10N
c)
1N
d)
1000N
56.
5,000 g = ____________ kg
a)
2
b)
50,000
c)
5
d)
10
57.
Which statement most accurately represents Hooke's Law?
a)
a) Extension of a spring is proportional to the force applied.
b)
b) Extension of a spring is proportional to the number of coils.
c)
c) Extension of a spring is inversely proportional to the force applied.
d)
d) Thickness of a spring wire is proportional to the force applied.
58.
Which keyword is defined as 'the amount of substance in an object'?
a)
a) Speed
b)
b) Density
c)
c) Mass
d)
d) Weight
59.

Spring constant is measured in

a)

N

b)

N/m

c)

m

60.

At point P, _______.

a)

the force applied to the spring is equal to its elongation

b)

Hooke's Law ceases to be valid

c)

the spring is can be stretched but still springs back into shape reversibly

d)

the spring constant increases

61.
If F is force, k is spring constant and x is extension, Hooke's Law tells us that:
a)
F=k/x
b)
x=Fk
c)
k=Fx
d)
F=kx
62.
Hooke's Law fails when a material reaches its:
a)
breakdown
b)
elastic limit
c)
end of tether
d)
fracture stress
63.
A graph of extension against force for an elastic material is:
a)
A downward curve
b)
An upward curve
c)
A straight line from any point on the x and y axis
d)
A straight line from the origin
64.
A stiff material has a:
a)
high spring constant
b)
low spring constant
c)
spring constant of any value
d)
spring constant which is difficult to predict
65.

A force of 400 N is applied to stretch a spring which has a spring constant, k=100 N/m. How much does the spring stretch past its free length ( extend)?

a)

0.4 m

b)

2.34 m

c)

4 m

d)

5.17 m

66.

A force of F=500 N is applied to extend a spring. What is the extension x of the spring if its spring constant is k= 500 N/m?

a)

0.1 m

b)

1 m

c)

1000 m

d)

100m

67.

_________ is the unit of Spring Constant

a)

N

b)

N/m

c)

m

68.

If the original length of a spring is 20m and its extended length is 30m. What is the extension?

a)

20m

b)

12m

c)

75m

d)

45m

e)

10m

69.
Hooke's Law describes the behaviour of which kind of material under tension?
a)
plastic
b)
metals only
c)
elastic
d)
non-metals only
70.

Which section of the Periodic Table contains the non-metals?

a)

The left-hand block only

b)

The middle block only

c)

Everything below and to the left of the red line

d)

Everything above and to the right of the red line

71.

The 2nd and 3rd shells can hold a maximum of...

a)

One electron

b)

2 electrons

c)

8 electrons

d)

10 electrons

72.

Which two of these atoms have more than 12 electrons?

a)

Boron

b)

Sulfur

c)

Neon

d)

Chlorine

73.

Use your Periodic Table to identify this atom.

a)

Lithium

b)

Nitrogen

c)

Sodium

d)

Oxygen

74.

Use your Periodic Table to identify this atom.

a)

Argon

b)

Neon

c)

Sodium

d)

Magnesium

75.

Why do atoms form ions during chemical reactions?

a)

To get a full first shell

b)

To empty their inner shells

c)

To get a full outer shell

d)

To become more reactive

76.

This atom, neon is a member of the group called the noble gases. Why are the noble gases unreactive?

a)

Because they already have full outer shells

b)

Because they have an even number of electrons

c)

Because they only need to gain one electron

77.

How could I write down the electron configuration for this atom?

a)

7, 8, 2

b)

2, 8, 7

c)

17

d)

2, 8, 8

78.

To get a full outer shell, this atom will...

a)

Gain 1 electron

b)

Gain 2 electrons

c)

Lose 1 electron

d)

Lose 2 electrons

79.

How was this ion formed?

a)

An aluminium atom lost three electrons

b)

A nitrogen atom lost three electrons

c)

A nitrogen atom gained three electrons

d)

A neon atom gained electrons

80.

An oxygen atom has reacted to get a full outer shell. What is the correct charge for the ion?

a)

+

b)

-

c)

2+

d)

2-

81.

Count the electrons in this atom's outer shell. What will happen when this atom reacts?

a)

It will gain 2 electrons and become a 2- ion.

b)

It will gain 3 electrons and become a 3- ion.

c)

It will lose 5 electrons and become a 5- ion.

d)

It will gain 3 electrons and become a 3+ ion.

82.

This ion was formed when a magnesium atom...

a)

lost two outer electrons

b)

gained two outer electrons

c)

lost one outer electron

d)

gained 6 electrons

83.

This is a lithium atom. To form a lithium ion it must...

a)

Gain one electron

b)

Lose one electron

c)

Gain two electrons

d)

Lose two electrons

84.

Sodium is a metal. It loses one electron when it reacts. The correct chemical symbol for a sodium ion would be..?

a)

Na+

b)

Na-

c)

Na2+

d)

Na+

85.

This diagram shows what happens when sodium reacts with chlorine to form sodium chloride. You have 3 minutes to describe what happens in as much detail as you can.


Challenge!

Magnesium is a metal with a total of 12 electrons. It can also react with chlorine, but only if there are twice as many chlorine atoms as magnesium. Can you explain why?

4 lines
86.

What is a fluoride ion's charge?

a)

+1

b)

-1

c)

+2

d)

-2

87.

What is the formula of magnesium chloride?

a)

MgClMgCl  

b)

MgCl2MgCl_2  

c)

MgCl3MgCl_3  

d)

Mg2ClMg_2Cl  

88.

What is the formula of the carbonate ion?

a)

CO2  −CO_2^{\ \ -}  

b)

CO3  2−CO_3^{\ \ 2-}  

c)

CO3  −CO_3^{\ \ -}  

d)

CO3  3−CO_3^{\ \ 3-}  

89.

What is the formula of Zinc Nitrate?

a)

Zn(NO3)2Zn\left(NO_3\right)_2  

b)

ZnN2O6ZnN_2O_6  

c)

Zn(NO2)2Zn\left(NO_2\right)_2  

d)

ZnNO3ZnNO_3  

90.

What is the formula of silver sulphate?

a)

AgSAgS  

b)

Ag2SAg_2S  

c)

AgSO4AgSO_4  

d)

Ag2SO4Ag_2SO_4  

91.

Which of these have commonly form ions with a 3+ charge?

a)

Aluminium

b)

Barium

c)

Iron

d)

Copper

92.

(Ignoring subscripts) what is the formula of Iron (III) hydroxide?

(a)  

93.

What is the name of this compound?

Fe2(SO4)3

(a)  

94.

(Ignoring subscripts) what is the formula of copper (II) iodide?

(a)  

95.

What is the charge of the vanadium ion in this compound?

NH4VO3

(a)  

96.

What is the charge of the manganate ion (MnO4x) in the compound K2MnO4

a)

+1

b)

-1

c)

+2

d)

-2

97.

The superoxide ion is O2-. If it could exist, what would be the formula of titanium (IV) superoxide? Titanium is 'Ti'. (Ignore subscripts)

(a)  

98.

In which of these compounds does chromium have the highest charge? (The superoxide ion, O2-, has a -1 charge)

a)

K2Cr2O7

b)

CrO2

c)

CrCl3

d)

K2Cr(O2)4

99.

What is the formula of silicon chloride?

a)

SiCl

b)

SiCl2

c)

SiCl3

d)

SiCl4

100.

Ignoring subscripts, what is the formula of ammonium carbonate?

(a)  

101.

The phosphate ion is PO43-. What is the charge of Vanadium in this compound?

VO(H2PO4)2

a)

+2

b)

+3

c)

+4

d)

+5

102.

(Ignoring subscripts) What is the formula of sulphuric acid, which is made only of hydrogen and sulphate ions?

(a)  

103.

In the nitrate ion, the oxygen has a charge of -2. What is the charge of the nitrogen?

a)

-3

b)

+5

c)

+1

d)

-1

104.

Calculate the relative formula mass of

copper (ii) chloride, CuCl2


[Relative atomic mass:

O = 16 ; Al = 27 ; S = 32 ; Cl = 35.5 ; Cu = 64 ]

a)

90

b)

135

c)

137

d)

99.5

105.

Calculate the relative formula mass of

aluminium sulphate, Al2(SO4)3


[Relative atomic mass:

O = 16 ; Al = 27 ; S = 32 ; Cl = 35.5 ; Cu = 64 ]

a)

150

b)

315

c)

342

d)

331

106.

Calculate the relative formula mass of

copper (i) sulphate, Cu2SO4.


[Relative atomic mass:

O = 16 ; Al = 27 ; S = 32 ; Cl = 35.5 ; Cu = 64 ]

a)

224

b)

160

c)

112

d)

128

107.

Calculate the relative formula mass of

copper (ii) sulphate, CuSO4.


[Relative atomic mass:

O = 16 ; Al = 27 ; S = 32 ; Cl = 35.5 ; Cu = 64 ]

a)

100

b)

112

c)

200

d)

160

108.

Calculate the relative formula mass of

aluminium oxide, Al2O3


[Relative atomic mass:

O = 16 ; Al = 27 ]

a)

70

b)

102

c)

43

d)

113

109.

Calculate the relative formula mass of

hydrochloric acid, HCl


[Relative atomic mass:

H = 1 ; Cl = 35.5 ]

a)

36.5

b)

35.5

c)

34.5

d)

37.5

110.

Calculate the relative formula mass of

calcium chloride, CaCl2


[Relative atomic mass:

Ca = 40, Cl = 35.5]

a)

130

b)

40

c)

71

d)

111

111.

Calculate the relative formula mass of

magnesium hydroxide, Mg(OH)2


[Relative atomic mass:

Mg = 24, H = 1, O = 16]

a)

50

b)

41

c)

58

d)

25

112.

Calculate the relative formula mass of

water, H2O


[Relative atomic mass:

H = 1, O = 16]

a)

16

b)

18

c)

17

d)

20

113.

Calculate the relative formula mass of

carbon dioxide CO2


[Relative atomic mass:

C = 12, O = 16]

a)

32

b)

41

c)

28

d)

44

114.

Calculate the relative formula mass of

sulphuric acid H2SO4


[Relative atomic mass:

H = 1, S = 32, O = 16]

a)

96

b)

98

c)

100

d)

92

115.

Calculate the relative formula mass of

sodium chloride, NaCl


[Relative atomic mass:

Ca = 40, Cl = 35.5]

a)

58.5

b)

60

c)

59.5

d)

61

116.

Calculate the relative formula mass of

iron chloride, FeCl2


[Relative atomic mass:

Fe = 56, Cl = 35.5]

a)

91.5

b)

127

c)

97

d)

121.5

117.

Calculate the relative formula mass of

sulphur dioxide, SO2


[Relative atomic mass:

S = 32, O = 16]

a)

48

b)

62

c)

64

d)

50

118.

Calculate the relative formula mass of

iron hydroxide, Fe(OH)2


[Relative atomic mass:

Fe = 56, O = 16, H = 1]

a)

74

b)

73

c)

96

d)

90

119.
Aluminium + Hydrochloric acid goes to 
a)
aluminium oxide
b)
aluchloride
c)
aluminium chloride 
d)
aluminium chloride + hydrogen 
120.
what is the correct symbol to show a molecule of Oxygen 
a)
O
b)
o
c)
O2
d)
Ox
121.
Magnesium + Oxygen goes to 
a)
Magnesium oxate
b)
magnesium oxide
c)
there is no reaction
d)
magnesium oxidase
122.
Sodium + Sulphuric acid goes to 
a)
Sodium sulphide
b)
Sodium chloride
c)
Sodium sulphate 
d)
Sodium sulphate + hydrogen 
123.
metal + acid goes to
a)
salt + hydrogen gas
b)
salt
c)
salt + water
d)
no reaction is formed
124.
Nickle + Nitric acid goes to 
a)
Nickle hyrdoxide + hydrogen 
b)
Nickle nitrate + hydrogen 
c)
nickle chloride + hydrogen 
d)
nickle nitrate
125.
How many atoms are there overall for the compound AlCl3
a)
3
b)
6
c)
4
d)
5
126.
How many atoms are there in this compound H2O
a)
2
b)
4
c)
3
d)
1
127.
What does the formula HCl stand for
a)
Hydrogen, carbon and Iodine
b)
Hydrochloric acid 
c)
Helium chloride
d)
Carbon nitrate 
128.
What is the following formula MgO
a)
Magnesium Oxide
b)
Magnesium nitrate
c)
Manganese dioxide
d)
Manganese oxide
129.

Which observation is NOT a sign of a chemical reaction?

a)

fizzing

b)

temperature change

c)

dissolving

d)

colour change

130.

Sodium is less reactive than potassium. Which is the correct equation for the displacement reaction between potassium chloride and sodium?

a)

Potassium chloride + Sodium → Potassium chloride + sodium

b)

Potassium chloride + Sodium→Potassium + sodium + chlorine

c)

Potassium chloride + Sodium→Potassium + Sodium chloride

d)

Potassium chloride + Sodium→ Sodium chloride + potassium

131.

This is how you test for hydrogen gas

a)

Put a glowing splint in the gas. It will relight

b)

Put a lit splint in the gas. It will go pop

c)

Bubble the gas through limewater which will go cloudy

d)

The hydrogen will smell like rotten eggs

132.

Which of these is a displacement reaction?

a)

Magnesium + oxygen → Magnesium oxide

b)

Hydrochloric acid + Sodium hydroxide → sodium chloride + water

c)

Calcium + Iron oxide → Calcium oxide + Iron

d)

Sodium + chlorine → Sodium chloride

133.

Which of these compounds is an alkali?

a)

sodium

b)

sodium hydroxide

c)

sodium chloride

d)

sodium oxide

134.

Which salt will be made if zinc is reacted with sulfuric acid?

a)

zinc chloride

b)

zinc carbonate

c)

zinc nitrate

d)

zinc sulfate

135.
What gas is produced when a metal reacts with an acid?
a)
Water vapour
b)
Acidic gas
c)
Hydrogen
d)
Nitrogen
136.
Which salt will be produced if magnesium react with hydrochloric acid?
a)
Magnesium oxide
b)
Magnesium sulfate
c)
Magnesium sulfide
d)
Magnesium chloride
137.

Which metal is most reactive?

a)

Potassium

b)

Aluminium

c)

Tin

d)

Gold

138.

Why are pieces of jewellery made from the bottom three metals?

a)

Because they look pretty

b)

Because they don't react with air and water

c)

Because they react violently with air and water.

d)

Because they are cheap to obtain

139.
What is produced when calcium is burned in air?
a)
hydrogen
b)
carbon dioxide 
c)
calcium oxide
d)
calcium hydroxide
140.
Magnesium + Hydrochloric acid -->
a)
Magnesium hydride
b)
Sodium chloride
c)
Magnesium chloride
d)
Magnesium sulfate
141.

Complete the word equation below:

Acid + alkali --> ............... + water

a)

water

b)

salt

c)

gold

d)

metal

142.

.............................. + sodium hydroxide --> sodium chloride + water

a)

Nitric acid

b)

Sulphuric acid

c)

Hydrochloric acid

d)

Ethanoic acid

143.

Toothpaste contain .................. that neutralize acid formed by bacteria.

a)

alkali

b)

acid

c)

antacid

d)

slaked lime

144.

Conditioners contain ........................ that neutralize shampoo on hairs.

a)

acid

b)

alkali

c)

vinegar

d)

natrium hydroxide

145.

Bee sting contain ............................ and can be neutralize using bicarbonate soda.

a)

alkali

b)

acid

c)

vinegar

d)

soda

146.

Excess acids in stomach can be neutralized using ............

a)

antacid

b)

vinegar

c)

slaked lime

d)

hydrochloric acid

147.

..................................... is used to treat water to reduce the acidity of water.

a)

alkali

b)

slaked lime

c)

antacid

d)

vinegar

148.

The reaction between an acid and an alkali

produces salt and water. This reaction is called

a)

acidication

b)

neutralisation

c)

alkalisation

149.
What method is used to study the neutralisation reaction between an acid and an alkali?
a)
Evaporation
b)
Titration
c)
Sublimation
d)
Electrolisis
150.
In a neutralisation reaction, what is the function of the indicator?
a)
To indicate that the mixture is neutral
b)
To indicate that hot water should be added
c)
To indicate that the flask should be shaken
d)
To indicate that a precipitate is formed
151.
products of a neutralisation reaction are always
a)
an acid and a base
b)
an acid and a salt
c)
salt and water
d)
salt and base
152.

How to neutralise bacteria in the teeth?

a)

Rinse

b)

Using fertiliser

c)

Using face cleanser

d)

Using toothpaste

153.

The reaction between an acid and alkali produces ____________

a)

salt

b)

acidic solution

c)

water

d)

alkaline solution

154.

Which of the following alkaline is used to neutralise acidic soil?

a)

Soap solution

b)

Potassium hydroxide

c)

Sodium hydroxide

d)

Calcium hydroxide

155.
Pure water has a pH of 7. Pure water _______.
a)
is a base
b)
is a neutral substance
c)
could be either an acid or a base
d)
is an acid
156.

What colour is Universal indicator when the solution is neutral?

a)

Red

b)

Green

c)

Blue

d)

Purple

157.
In a neutralisation reaction, dilute hydrochloric acid is slowly added to a sodium hydroxide solution. What is the colour change at the end point if the indicator used is phenolphthalein?
a)
From colourless to pink
b)
From blue to green
c)
From pink to colourless
d)
From green to blue
158.

What type of reaction occurs when you react an acid with an alkali?

a)

combustion

b)

decomposition

c)

no reaction

d)

neutralisation

159.

Where does the acid in you mouth come from?

a)

From stomach

b)

From stomach acid

c)

From the millions of

bacteria of mouth

d)

From the teeth

160.

What colour is litmus in solution of pH 4?

a)

green

b)

red

c)

blue

d)

dark blue

161.

List four factors that affects the rate of a reaction

a)

temperature

b)

concentration

c)

surface area

d)

volume

e)

catalysts

162.

A temperature increase causes the particles ......

a)

to slow down

b)

move faster

c)

collide higher

d)

in the right order

163.

How does a catalyst work in speeding up a reaction?

a)

By lowering the activation energy or reaction

b)

by giving them more energy

c)

by making them more available

164.
The rate of a chemical reaction is NOT affected by which of the following:
a)
temperature
b)
concentration
c)
particle size (surface area)
d)
All of these affect reaction rates
165.
The rate of a reaction increases as temperature__________________.
a)
Decreases
b)
Increases
c)
Stays the Same
166.
Products will form faster if____________
a)
the particle size of the reactants are larger.
b)
temperature is decreased.
c)
concentration of the reactants are increased.
d)
the reaction is not stirred.
167.
A ______________ is a substance that increases the rate of a reaction without being used up during the reaction. 
a)
catalyst
b)
product
c)
reactant
d)
solute
168.
The ___________ the surface area of the reactants, the faster the reaction rate.
a)
larger 
b)
smaller
169.
Smaller particle size allows for a _________ surface area to be exposed for the reaction.
a)
larger
b)
smaller
170.
Increasing the temperature will increase the kinetic energy of particles, therefore increasing the collisions between particles.
a)
false
b)
true
171.
Usually lowering the temperature will slow down a reaction.
a)
false
b)
true
172.
Increasing the concentration of the reactants will slow down the reaction.
a)
false 
b)
true
173.
A catalyst increases the efficiency of collisions between reactants.
a)
true
b)
false
174.
You observe bubbles after adding metal to a solution. Do you assume a chemical reaction took place?
a)
Yes
b)
No
175.
A solution is heated and bubbles form. Do you assume a chemical reaction took place?
a)
Yes
b)
No
176.
Two clear and colorless solutions are combined within a test tube. The result is very cloudy. Do you assume a chemical reaction took place?
a)
Yes
b)
No
177.
Two clear and colorless solutions are combined within a test tube. The resulting solution is purple. Do you assume a chemical reaction took place?
a)
Yes
b)
No
178.
Metal is added to a solution in a test tube. The test tube now feels cooler. Do you assume a chemical reaction took place?
a)
Yes
b)
No
179.
A beaker containing a solution is heated. The beaker now feels warm. Do you assume a chemical reaction took place?
a)
Yes
b)
No
180.

Which factors affect the rate of a reaction?

a)

temperature

b)

concentration

c)

surface area

d)

pressure

e)

catalyst

181.

A temperature increase causes the particles to ......

a)

to slow down

b)

move faster

c)

collide higher

d)

in the right order

182.

Why does a higher concentration increase the rate of reaction?

a)

it increases the amount of reactants

b)

it lowers the activation energy

c)

it increases the energy of particle collisions

d)

it increases the frequency of particle collisions

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