1901303
Beschreibung
Quiz von Daisy Fletcher-Cooney, aktualisiert more than 1 year ago
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Erstellt von Daisy Fletcher-Cooney
vor fast 10 Jahre
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Frage 1
Frage
What group are the alkali metals in?
Antworten
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Group 1
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Group 7
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Group 3
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Group 4
Frage 2
Frage
What colour flame does lithium produce?
Antworten
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Orange
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Yellow
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Lilac
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Red
Frage 3
Frage
Sodium produces an orange flame
Antworten
- True
- False
Frage 4
Frage
What colour does potassium produce?
Antworten
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Blue
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Lilac
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Red
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Yellow
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Green
Frage 5
Frage
What colour flame does calcium produce?
Antworten
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Brick red
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lilac
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red
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orange
Frage 6
Frage
Ammonium ions can be identified in a solution by adding dilute sodium hydroxide solution and gently heating. If ammonium ions are present, they will be converted to ammonia gas. Ammonia has a characteristic choking smell. It also turns damp red litmus paper or damp universal indicator paper blue.
Antworten
- True
- False
Frage 7
Frage
When NaOH is added to Fe2+, what colour is the precipitate?
Antworten
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Orange-brown
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green
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blue
Frage 8
Frage
When NaOH is added to Fe3+, what colour is the precipitate?
Antworten
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Green
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Orange-brown
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Blue
Frage 9
Frage
When NaOH is added to Cu2+, the precipitate is green
Antworten
- True
- False
Frage 10
Frage
When dilute NaOH is added to Zn2+, a white precipitate forms
Antworten
- True
- False
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