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WorksheetsY7 Top-up Quiz - BUNSEN BURNER & MIXTURES / AIR
Total questions: 15
Worksheet time: 20mins
Which part of the Bunsen flame is the hottest?
A
B
C
D
When the air hole is fully closed, what colour is the flame?
Yellow / Orange / Sooty
Light Blue
Light blue and purple
Purple
The first steps in using a bunsen burner, after checking for any blockages in the chimney are:
Place on the bench, connect gas hose to a gas tap and make sure the air hole is open and light the bunsen burner
Place on heat proof mat, connect gas hose to a gas tap and make sure the air hole is open and light the bunsen burner
Place on heat proof mat, connect gas hose to a gas tap and light the bunsen burner
Place on heat proof mat, connect gas hose to a gas tap and make sure the air hole is almost fully closed and light the bunsen burner
The natural gas can only mix with air at the top of the chimney meaning there is incomplete combustion making a sooty flame. This is because
the air hole is half closed
the air hole is fully opened
the air hole is fully closed
the gas has not been turned on fully
Which gas creates green house effect in the atmosphere?
carbon dioxide
ozone
oxygen
methane
Which gas makes the bulk of atmosphere?
oxygen
nitrogen
carbon dioxide
argon
What is the test for HYDROGEN gas?
Put near a flame - makes a squeaky pop!
Put in a glowing splint - the splint relights!
Bubble through Lime Water - goes from clear to cloudy!
Put in a burning splint - the splint goes out!
Add to Anhydrous Copper Sulfate - goes from white to blue!
What is the test for OXYGEN gas?
Put near a flame - makes a squeaky pop!
Put in a glowing splint - the splint relights!
Bubble through Lime Water - goes from clear to cloudy!
Put in a burning splint - the splint goes out!
Add to Anhydrous Copper Sulfate - goes from white to blue!
What is the test for CARBON DIOXIDE gas?
Put near a flame - makes a squeaky pop!
Put in a glowing splint - the splint relights!
Bubble through Lime Water - goes from clear to cloudy!
Put in a burning splint - the splint goes out!
Add to Anhydrous Copper Sulfate - goes from white to blue!
Some steel wool was left in a tube of air, stood in some water. The steel rusts and uses up the OXYGEN. How much would the water rise (to take the oxygen's place)?
1/10 the tube
1/5 the tube
1/2 the tube
the water would not rise
Carbon dioxide can firectly be made by...
(Select 3 answers)...
burning coal
boiling water
using a Bunsen burner
crushing up calcium carbonate
heating limestone
Sea water can be described as...
a mixture
a compound
a pure substance
an element
How would you separate the gases in air?
filtration
gas chromatography
fractional distillation
you cannot - they are gases
