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- 1. Multiple Choice
What is the charge of anions?
positive
negative
neutral
free of charge
- 2. Multiple Choice
Which of the following are anions?
ammonium ion
chloride ion
carbonate ion
sulfate ion
- 3. Multiple Choice
When dilute acid was added to an unknown sample, effervescence was observed. Which anion is present?
ammonium ion
carbonate ion
nitrate ion
sulfate ion
- 4. Multiple Choice
As a gas was bubbled through limewater, this was observed. What is the identity of the gas?
hydrogen
ammonia
oxygen
carbon dioxide
- 5. Multiple Choice
A colourless pungent gas turns damp red litmus paper blue. What is the identity of the gas?
hydrogen
ammonia
oxygen
carbon dioxide
- 6. Multiple Choice
When dilute nitric acid, followed by silver nitrate solution was added to an unknown sample, a white precipitate was observed. Which anion is present?
chloride ion
carbonate ion
nitrate ion
sulfate ion
- 7. Multiple Choice
When dilute nitric acid, followed by barium nitrate solution was added to an unknown sample, a white precipitate was observed. Which anion is present?
chloride ion
carbonate ion
nitrate ion
sulfate ion
- 8. Multiple Choice
When dilute nitric acid, followed by silver nitrate solution was added to an unknown sample, a white precipitate was observed. What is the white precipitate formed?
silver chloride
silver carbonate
silver nitrate
silver sulfate
- 9. Multiple Choice
When dilute nitric acid, followed by barium nitrate solution was added to an unknown sample, a white precipitate was observed. What is the white precipitate formed?
barium chloride
barium carbonate
barium nitrate
barium sulfate
- 10. Multiple Choice
As a gas was bubbled through limewater, this was observed. What is the correct way to describe it?
white cloudy emulsion
white chalky solution
white milky solution
white precipitate formed in limewater
- 11. Multiple Choice
Adding sodium hydroxide followed by Al foil to an unknown solution, and warming it, is a test for which anion?
ammonium ion
carbonate ion
nitrate ion
sulfate ion
- 12. Multiple Choice
What is the chemical name for limewater?
sodium hydroxide
calcium hydroxide
potassium hydroxide
ammonium hydroxide
- 13. Multiple Choice
This is the setup to test for which gas?
hydrogen
ammonia
oxygen
carbon dioxide
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