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Quiz on Anions test, created by Yatta on 10/05/2015.

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Anions test

Question 1 of 5

1

Dilute Hydrochloric acid is added then aqueous Barium Nitrate, a white precipitate forms. Which anion is present?

Select one of the following:

  • Sulfate (SO42−)

  • Nitrate (NO3−)

  • Carbonate (CO32-)

Explanation

Question 2 of 5

1

How would you determine whether Nitrate (NO3-) ions are present in a solution

Select one of the following:

  • Add Acid -> Effervescence -> Carbon dioxide released (turns lime water milky)

  • Add Aq. Sodium hydroxide -> add aluminium foil and warm gently -> Ammonia released (turns damp red litmus paper blue)

  • Add dilute Hydrochloric acid -> Add Aq. Barium nitrate -> White precipitate

Explanation

Question 3 of 5

1

Which of these is untrue for testing for halides in solution

Select one or more of the following:

  • Iodide - White ppt.

  • Chloride - Cream ppt.

  • Bromide - Yellow ppt.

Explanation

Question 4 of 5

1

Dilute nitric acid is added to a substance and then silver nitrate, a white precipitate forms, what anion is present?

Select one or more of the following:

  • Iodide

  • Carbonate

  • Sulfate

  • Bromide

  • Nitrate

  • Chloride

Explanation

Question 5 of 5

1

To test whether a carbonate anion is present, a dilute acid is added and effervescence is observed and Oxygen released.

Select one of the following:

  • True
  • False

Explanation

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