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WorksheetsIGCSE Analysis
Total questions: 20
Worksheet time: 11mins
What colour is Fe(OH)2?
red
green
brown
blue
What is the best test for sulfate ions?
add hydrochloric acid followed by barium chloride solution
add sodium hydroxide followed by barium chloride solution
add barium chloride solution
add barium sulfate solution
Barium sulfate is a ...
yellow soluble solid
yellow insoluble solid
white soluble solid
white insoluble solid
The test for ammonium ions involves adding sodium hydroxide, heating and testing for the vapour that is formed. The test for the gas...
...involves bubbling the gas through limewater, which goes cloudy
...involves using a glowing splint, which relights
...involves using damp red litmus paper, which goes blue
...involves using damp blue litmus paper, which goes red
Nitric acid followed by a solution of silver nitrate are aded to a solution of sodium chloride. What will be observed?
A cream precipitate
A white precipitate
A blue precipitate
A yellow precipitate
A compound gives a yellow flame test and fizzes when hydrochloric acid is added. The compound might be
NaCl
Na2CO3
CaCO3
Na2SO4
A compound gives a blue precipitate when sodium hydroxide is added. When a solution of hydrochloric acid followed by barium chloride is added a white precipitate is observed. The compound is likely to be
Iron(II) chloride
Copper(II) chloride
Iron(II) sulfate
Copper(II) sulfate
A compound gives a dirty green precipitate when sodium hydroxide is added and a yellow precipitate after nitric acid and silver nitrate are added. The compound is likely to be
Iron(III) iodide
Iron(II) chloride
Sodium iodide
Iron(II) iodide
Which of these flame test results is NOT correct?
lithium burns red
copper (II) burns blue/green
calcium burns yellow
potassium burns lilac
What is added to test for carbonate ions and what do you observe?
sodium hydroxide, white ppt
dilute hydrochloric acid, blue ppt
dilute hydrochloric acid, effervescence
sodium hydroxide, effervescence
Which gas do you test with limewater and what does a positive test look like?
oxygen, white ppt
oxygen, yellow ppt
carbon dioxide, yellow ppt
carbon dioxide, white ppt
Why can you not use hydrochloric acid when testing for halides?
the acid is not strong enough
the pH is too low
the chlorine in the acid gives a ppt
chlorine gas is produced
This test tube may contain Hydrogen. How could we test for this?
relights a glowing splint
Insert a lit splint and it gives a squeaky pop
insert a lit splint and it will go out
Use litmus paper
What colour does litmus paper turn in the presence of chlorine?
Red
Blue
White
Yellow
How does carbon dioxide react with a lit splint?
Squeaky pop
It explodes
Increases flame
Extinguish flame
How do you test for oxygen?
Use a lit splint and it relights
Use a glowing splint and it relights
Use litmus paper
Use a delivery tube
Complete the equation:
Acid + Metal ---> __________ + Hydrogen
Water
Salt
Acid
Alkali
what is the test for carbon dioxide?
relights a glowing splint
turns limewater cloudy
lit splint gives a squeaky pop
bleaches damp litmus paper white
what ion is responsible for brick-red flame colour?
Ca
Li+
Ca2+
K
Why should we not use sulfuric acid to acidify the barium chloride in the sulfate ion test?
it already contains sulfate ions so will give a white ppte anyway
it reacts with the barium chloride
it is not acidic enough
it dissolves any precipitate formed before you have chance to observe it
