8.4 Identification of ions and gases

Revision of the last section '8.4 Identification of ions and gases' of section '8. Acids, bases and salts' in the CIE IGCSE syllabus for chemistry. Everything here is in core theory but it is needed for extended as well.

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What colour is the flame test for potassium (I)?
Lilac
1 of 26
What colour is the flame test for sodium (I)?
Yellow
2 of 26
Which metal ion does a red flame indicate?
Lithium (I)
3 of 26
Which metal ion does a green/blue flame indicate?
Copper (II)
4 of 26
What would you use to test for ammonia?
Damp red litmus paper
5 of 26
What would you use to test for carbon dioxide?
Limewater
6 of 26
What turns blue litmus paper red then bleaches it white?
Chlorine
7 of 26
What is the test for hydrogen commonly referred to as?
Squeaky pop
8 of 26
What does a glowing splint do in the presence of oxygen?
Relights
9 of 26
The test for which gas uses potassium manganate (VII)?
Sulfur dioxide
10 of 26
What colour does purple potassium manganate (VII) turn in the presence of sulfur dioxide?
Colourless
11 of 26
Which anion would you be testing for if you were using dilute hydrochloric acid and barium nitrate or barium choride?
Sulfate
12 of 26
To test for the nitrate anion you heat it with sodium hydroxide and what other substance?
Aluminium foil or powder
13 of 26
The test for which type of anion uses dilute nitric acid and silver nitrate?
Halides
14 of 26
What colour is the precipitate silver chloride
White
15 of 26
What colour is the precipitate silver iodide?
Yellow
16 of 26
A cream precipitate of silver indicates which halide ion?
Bromide
17 of 26
What is the colour of the precipitates of chromium (III) and iron (II)?
Grey/green
18 of 26
Which metal ion has a red/brown precipitate?
Iron (III)
19 of 26
What colour is the copper (II) precipitate?
Light blue
20 of 26
What colours are the precipitates of calcium (II), zinc (II) and aluminium (III)?
White
21 of 26
What colour is the solution formed when excess aqueous sodium hydroxide reacts with chromium (III)?
Green
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Which metal ion forms a colourless solution with both excess aqueous sodium hydroxide and excess aqueous ammonia?
Zinc (II)
23 of 26
Which metal ion forms a dark blue solution with excess aqueous ammonia?
Copper (II)
24 of 26
Which metal ion forms a colourless solution with excess aqueous sodium hydroxide but is insoluble in excess aqueous ammonia?
Aluminium (III)
25 of 26
Which white precipitate is insoluble in excess aqueous sodium hydroxide?
Calcium (II)
26 of 26

Other cards in this set

Card 2

Front

What colour is the flame test for sodium (I)?

Back

Yellow

Card 3

Front

Which metal ion does a red flame indicate?

Back

Preview of the front of card 3

Card 4

Front

Which metal ion does a green/blue flame indicate?

Back

Preview of the front of card 4

Card 5

Front

What would you use to test for ammonia?

Back

Preview of the front of card 5
View more cards

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