Who Wants To Be
A Millionaire?
Limestone
Edition
Question 1
What is the chemical
formula of limestone?
A
B
C
D
CaO
Ca(OH)2
CaCO3
CaCO2
Answer
A
B
C
D
CaO
Ca(OH)2
CaCO3
CaCO2
£100
Question 2
How is quicklime formed
from limestone?
A
B
C
D
Heating
Adding water
Mixing with clay
Mixing with sand
Answer
A
B
C
D
Heating
Adding water
Mixing with clay
Mixing with sand
£200
Question 3
Calcium oxide is formed by
what type of reaction?
A
B
C
D
reduction
oxidation
thermal decomposition
addition
Answer
A
B
C
D
reduction
oxidation
thermal decomposition
addition
£300
Question 4
What is the common name
for calcium hydroxide?
A
B
C
D
lime
quicklime
limewater
slaked lime
Answer
A
B
C
D
lime
quicklime
limewater
slaked lime
£500
Question 5
Compared to limestone
slaked lime is…
A
B
C
D
stronger acid
stronger alkali
neutral
weaker alkali
Answer
A
B
C
D
stronger acid
stronger alkali
neutral
weaker alkali
£1,000
Question 6
The products formed in
a lime kiln are:
A
B
C
D
CaO + CO2
CaO + H2O
CaO + CO
CaO2 + CO2
Answer
A
B
C
D
CaO + CO2
CaO + H2O
CaO + CO
CaO2 + CO2
£2,000
Question 7
Which of the following is
limestone not used for?
A
B
C
D
Making cement
Making glass
Building
Acidifying lakes
Answer
A
B
C
D
Making cement
Making glass
Building
Acidifying lakes
£4,000
Question 8
Cement is made from?
A
B
C
D
clay and limestone
clay and soda
clay and quicklime
clay and slaked lime
Answer
A
B
C
D
clay and limestone
clay and soda
clay and quicklime
clay and slaked lime
£8,000
Question 9
Glass is produced from..
A
B
C
D
soda, clay and limestone
soda, sand and limestone
clay, sand and limestone
cement, soda and limestone
Answer
A
B
C
D
soda, clay and limestone
soda, sand and limestone
clay, sand and limestone
cement, soda and limestone
£16,000
Question 10
Limestone in the Peak
District was formed how
long ago?
A
B
C
D
100 million years
200 million years
300 million years
400 million years
Answer
A
B
C
D
100 million years
200 million years
300 million years
400 million years
£32,000
Question 11
Quicklime reacts with
water to produce..
A
B
C
D
Soda
Limestone
Slaked lime
Calcium oxide
Answer
A
B
C
D
Soda
Limestone
Slaked lime
Calcium oxide
£64,000
Question 12
Concrete is formed when
sand is mixed with..
A
B
C
D
water, cement & lime
water, cement & gravel
water, lime and clay
water, cement and clay
Answer
A
B
C
D
water, cement & lime
water, cement & gravel
water, lime and clay
water, cement and clay
£125,000
Question 13
Calcium oxide + water
A
B
C
D
calcium dioxide
quicklime
calcium hydroxide
limewater
?
Answer
A
B
C
D
calcium dioxide
quicklime
calcium hydroxide
limewater
£250,000
Question 14
An example of a type of
sedimentary rock is..
A
B
C
D
marble
slate
basalt
mudstone
Answer
A
B
C
D
marble
slate
basalt
mudstone
£500,000
Question 15
The chemical name for
limewater is
A
B
C
D
calcium hydroxide solution
calcium oxide solution
calcium carbonate solution
calcium hydroxide
Answer
A
B
C
D
calcium hydroxide solution
calcium oxide solution
calcium carbonate solution
calcium hydroxide
£1,000,000