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EOYE Chemistry retrieval practice

Total questions: 99

Worksheet time: 1hrs 7mins

Name
Class
Date
1.

To test for hydrogen you....

a)

use a lit splint

b)

use a glowing splint

c)

add anhydrous copper sulphate

d)

bubble the gas through limewater

2.

The positive result for a lit splint test......

a)

gives a squeaky pop

b)

shows the presence of hydrogen

c)

has the splint relights

d)

has the splint goes out

3.

When carbon dioxide is bubbled through limewater a positive result could be described as.....

a)

colourless to milky

b)

colourless to cloudy

c)

a white precipitate forms

d)

the solution goes clear

4.

which gas is this testing for?

a)

hydrogen

b)

chlorine

c)

oxygen

d)

carbon dioxide

5.

What liquid tests for CO2?

a)

water

b)

limewater

c)

chlorine

d)

acid

6.

Which of the following is a test for carbon dioxide gas?

a)

Burns with a squeaky pop.

b)

Relights a glowing splint.

c)

Turns limewater cloudy white.

d)

Turns litmus paper red.

7.

Which of the following is a test for hydrogen gas?

a)

Burns with a squeaky pop.

b)

Relights a glowing splint.

c)

Turns limewater cloudy white.

d)

Turns litmus paper red.

8.

Which of the following statements is the correct test for carbon dioxide gas?

a)

It turns limewater from colourless to cloudy white.

b)

It turns limewater from cloudy white to colourless.

c)

It relights a glowing splint.

d)

It burns with a squeaky pop.

9.

Which of the following statements is the correct test for hydrogen gas?

a)

It relights a glowing splint.

b)

It gives a pop sound with a glowing splint.

c)

It gives a pop sound with a burning splint.

d)

It turns limewater from cloudy white to colourless.

10.
Alkali metals are found in which group of the periodic table?
a)
Group 1
b)
Group 2
c)
Group 7
d)
group 8 
11.
Which of the following is the most reactive in water?
a)
Lithium
b)
Sodium
c)
Potassium
12.
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
13.
What is another name for the elements in group 7?
a)
The Halogens
b)
The Noble gases
c)
The Oxides
d)
The Alkali Metals
14.

Alkali are so reactive to air they are generally stored in what?

a)

Water

b)

Oil

c)

Vaults

d)

Cotton

e)

a vacuum

15.
True or false: Alkali Metals are so soft they can be cut with a knife?
a)
True
b)
False
16.
As Alkali Metals atomic number increases their melting point?
a)
Increases
b)
Decreases 
c)
Stays the same
17.
True or False: Lithium under normal conditions is the lightest metal?
a)
True
b)
False
18.
--------------------- is released when alkali metal react with water
a)
Hydrogen
b)
Oxygen
c)
Metahne
d)
Carbon di oxide
19.

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

a)

increases

b)

decreases

20.

Which of the following are alkali metals

a)

Sodium

b)

Caesium

c)

Francium

d)

Calcium

e)

Potassium

21.

What is the chemical symbol for Potassium?

a)

K

b)

Na

c)

Po

d)

So

e)

Li

22.

What is the chemical symbol for Sodium?

a)

K

b)

Na

c)

Po

d)

So

e)

Li

23.

Which of these elements are Halogens?

a)

Fluorine

b)

Helium

c)

Zinc

d)

Bromine

24.

What group are the Halogens?

a)

6.9

b)

7

c)

8

d)

3

25.

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

a)

Flourine

b)

Chlorine

c)

Iodine

d)

Bromine

26.

Which of the "Halogens" has yellowish green color?

a)

Chlorine

b)

Bromine

c)

Flourine

d)

Iodine

27.
At room temperature, chlorine is...
a)
a yellow-green gas
b)
a brown gas
c)
a yellow-green liquid
28.

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

a)

increases

b)

decreases

c)

doesn't change

d)

shows no trend.

29.

Which halogen is the most reactive?

a)

iodine

b)

chlorine

c)

bromine

d)

fluorine

30.

Which halogen is the least reactive?

a)

iodine

b)

chlorine

c)

bromine

d)

fluorine

31.

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.

32.

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.

33.

Would a displacement reaction occur for Bromine + Potassium Iodide?

a)

Yes

b)

No

c)

Maybe

34.

Would a displacement reaction occur for Iodine + Potassium Bromide?

a)

Yes

b)

No

c)

Maybe

35.

Which of the following groups is inert?

a)

Alkali

b)

Transition Metals

c)

Noble Gas

36.
a)
Alkali
b)
Alkaline
c)
Halogen
d)
Noble Gases
37.
a)
Alkali
b)
Alkaline
c)
Halogen
d)
Noble Gases
38.
a)

Transition Metals

b)

Inner Transition Metals

c)

Metals

d)

Metalloids

39.
Which of these is not a noble gas?
a)
Helium
b)
Argon
c)
Nitrogen
d)
Krypton
40.

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

a)

Colourless

b)

Odourless

c)

Flammable

d)

Gas at room temperature

41.
Which noble gas is found in signs or light displays?
a)
Krypton
b)
Helium
c)
Argon
d)
Neon
42.
Another term for being chemically inactive is...
a)
Inert
b)
Inbert
c)
Insert
d)
Inmert
43.
1 A substance made up of two or more chemically combinedelements is —
a)
an element
b)
mixture
c)
compound
d)
solution
44.
 A substance that cannot be broken down into any other substance by ordinarychemical means is called —
a)
molecule
b)
mixture
c)
element
d)
compound
45.
Two or more physically combined substances form —
a)
a compoud
b)
an acid
c)
an element
d)
a mixture
46.
NaHCO3 is an example of —
a)
an abbreviation
b)
a compound
c)
a mixture
d)
an element
47.
A substance made of only one type of atom is called —
a)
an element
b)
a mixture
c)
a compound
d)
a salt
48.
What is an example of an element?
a)
Oxygen
b)
Pure water
c)
Air
d)
Table salt
49.
Two or more substances in the same place but NOT chemically combined or in a specific ratio is called —
a)
a compound 
b)
a pure substance
c)
an element
d)
a mixture
50.
A compound is made of ________ atoms. 
a)
big 
b)
similar 
c)
different 
51.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
52.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture of elements
d)
mixture of compounds
53.

In the diagrams provided, the circles of different colors represent the atoms of different elements. Which diagram represents a mixture?

a)

I

b)

II

c)

III

d)

IV

54.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
55.
This diagram represents a _____.
a)
pure substance that is a compound
b)
mixture of elements
c)
pure substance that is an element
d)
mixture of compounds
56.

Which of the following is a mixture?


(circles of different colors represent different types of atoms)

(circles that are touching are chemically bonded)

a)
b)
c)
57.

Which method(s) below is suitable to obtain salt from a salt solution?

a)

distillation

b)

dissolving

c)

filtration

d)

evaporation

58.

Which method(s) below is suitable to obtain pure water from a salt solution?

a)

distillation

b)

dissolving

c)

filtration

d)

evaporation

59.

The colour of plant leaves is due to a mixture of pigments.


Which method is used to separate these pigments?

a)

filtration

b)

evaporation

c)

distillation

d)

chromatography

60.

Ms Lenny wants to separate a mixture of sand and salt.


Which option below can she use to obtain the sand from the mixture?

a)

filtration only by pouring mixture of sand and salt through filter paper

b)

dissolving only by adding water to mixture

c)

dissolving first then use filtration

d)

dissolving first then use evaporation

61.

Which processes take place during distillation?

Hint: There are 2 processes.

a)

freezing

b)

boiling

c)

condensation

d)

melting

62.

Chromatography is commonly used in food testing to identify the presence of banned additives in food.


Which additive(s), P, Q, R or S is/are present in Chewy Candy?

a)

P and R

b)

P and S

c)

Q and R

d)

Q and S

63.

What is the apparatus labelled X known as?

(a)  

64.

Muddy water is filtered using filter paper and filter funnel. The mud stays on the filter paper.


Why does the mud stay on the filter paper?

a)

The mud reacts with the filter paper.

b)

The particles of mud are too large to pass through the holes in the filter paper.

c)

The particles of the water stop the mud going through.

d)

The particles of water make the filter paper wet.

65.

Which ink, W, X or Y is a pure substance based on the chromatogram shown?

a)

W

b)

X

c)

Y

66.

When a mixture of rock pieces, salt, and water is filtered, what is the residue?

a)

Rock Pieces

b)

Salt

c)

Water

d)

Salt and Water

67.

When a mixture of rock pieces, salt, and water is filtered, what is the filtrate?

a)

Rock Pieces

b)

Salt

c)

Water

d)

Salt and Water

68.

Out of salt and water, what is the solute?

a)

Salt

b)

Water

69.

Out of salt and water, what is the solvent?

a)

Salt

b)

Water

70.

What is the name of the process used to separate an insoluble substance from an a solution?

a)

Filtration

b)

Crystallisation

c)

Sieving

71.

1.What is the name of the process to separate a soluble substance from a solution?

a)

Filtration

b)

Crystallisation

c)

Sieving

72.

What is the separation technique in the picture?

a)

Decantaion

b)

Evaporation

c)

Distillation

d)

Using a magnet

73.
Which one of the following would you use to separate sand from iron filings?
a)
a bar magnet
b)
filter paper
c)
chromatography paper
d)
alum
74.
What is the left part of a chemical equation called?
H2 + O → H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
75.
What is the right part of a chemical equation called?
H2 + O → H2O
a)
Reactants
b)
Products 
c)
Yields 
d)
Chemical Equation 
76.
One of the signs of a chemical reaction taking place is:
a)
Bubbles are produced 
b)
Reactants are not combining
c)
Products are not forming
d)
Colour is not changing
77.
The Law of Conservation of Mass proves that -
a)
the number of atoms in a chemical reaction does not change
b)
there are more atoms on the reactant side than the product side
c)
there are more atoms on the product side than the reactant side
d)
the mass of the product will not equal the reactants
78.
You know you a chemical reaction has occurred if 
a)
there is a precipitate.
b)
there is a color change.
c)
there is a temperature change.
d)
All of these answers are evidence.
79.
In the equation,          
2Mg + O2 ---> 2MgO, which are the reactants?
a)
Mg and O2
b)
MgO
c)
Mg and MgO
d)
O2 and MgO
80.
What should be written between the reactants and products?
a)
an equal sign
b)
a triangle
c)
an arrow
d)
the word "yields"
81.
At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
a)
the product is doubled
b)
the product is half the mass of the reactants
c)
the mass is the same
d)
the mass changes depending on the reaction
82.
Evidence of a chemical reactions is anything that shows - 
a)
a new substance has formed
b)
a solid dissolved in a liquid
c)
interaction between 2 gases
d)
a change in the state of matter
83.

Dissolving salt is a

a)

Chemical change

b)

Physical change

84.

Which is not a chemical reaction?

a)

Mixing baking soda and vinegar, bubbles are formed

b)

Boiling water, bubbles are formed

c)

Alkaseltzer tablet in water, bubbles are formed

d)

Cake baking in over, bubbles are formed

85.
Four students performed four different investigations by combining different substances. Which of the observations is most indicative of a chemical reaction?
a)
investigation 1
b)
investigation 2
c)
investigation 3
d)
investigation 4
86.

When a metal is shiny, we say it is ___________.

a)

lustrous

b)

malleable

c)

ductile

d)

conductive

87.

When a metal can be pounded into thin sheets, we say it is ___________.

a)

lustrous

b)

malleable

c)

ductile

d)

conductive

88.

When a metal can be made into thin wires, we say it is ___________.

a)

lustrous

b)

malleable

c)

ductile

d)

conductive

89.

When a metal can allow heat or electricity to flow through it, we say it is ___________.

a)

lustrous

b)

malleable

c)

ductile

d)

conductive

90.

Which state of matter are most metals at room temperature?

a)

solid

b)

liquid

c)

gas

d)

degrees

91.

Which of the following metals are magnetic? (Choose all that apply.)

a)

iron

b)

nickel

c)

copper

d)

aluminum

e)

gold

92.

Which of the following materials would make a good conductor of heat and electricity? (Choose all that apply.)

a)

pots and pans

b)

rubber tubing

c)

copper wires

d)

iron nails

e)

a plastic handle

93.

The chemical symbol for iron

a)

Ir

b)

Fe

c)

I

d)

Fn

94.

The only liquid metal at the room temperature

a)

Francium

b)

Sodium

c)

Mercury

d)

Cobalt

95.

Chemical symbol for Gold

a)

Go

b)

G

c)

Au

d)

Mn

96.

Which one is not a metal?

a)

Magnesium

b)

Nickel

c)

Mercury

d)

Nitrogen

97.

What is an alloy

a)

A mixture of metals and gas

b)

A mixture of carbon and steel

c)

A homogenus mixture of metals and non metals

d)

mixture of metals and non metals

98.

Define alloys

a)

Metals

b)

Mixture of two or more elements

c)

A group of non-metals

d)

Carbon compound

99.

A mixture of metals is called an (a)   .

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