2697824
Frage 1
Frage
Dilute Hydrochloric acid is added then aqueous Barium Nitrate, a white precipitate forms. Which anion is present?
Antworten
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Sulfate (SO42−)
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Nitrate (NO3−)
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Carbonate (CO32-)
Frage 2
Frage
How would you determine whether Nitrate (NO3-) ions are present in a solution
Antworten
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Add Acid -> Effervescence -> Carbon dioxide released (turns lime water milky)
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Add Aq. Sodium hydroxide -> add aluminium foil and warm gently -> Ammonia released (turns damp red litmus paper blue)
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Add dilute Hydrochloric acid -> Add Aq. Barium nitrate -> White precipitate
Frage 3
Frage
Which of these is untrue for testing for halides in solution
Antworten
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Iodide - White ppt.
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Chloride - Cream ppt.
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Bromide - Yellow ppt.
Frage 4
Frage
Dilute nitric acid is added to a substance and then silver nitrate, a white precipitate forms, what anion is present?
Antworten
-
Iodide
-
Carbonate
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Sulfate
-
Bromide
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Nitrate
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Chloride
Frage 5
Frage
To test whether a carbonate anion is present, a dilute acid is added and effervescence is observed and Oxygen released.
Antworten
- True
- False
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