Salt Preparation And Qualitative Analysis (Zhengkang Jinan)

20 Questions

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Salt Preparation Quizzes & Trivia

This quiz is about QA and salt preparation. It is best if you have viewed the videos in the website.


Questions and Answers
  • 1. 
    Which of the following is not soluble?
    • A. 

      Sodium Nitrate

    • B. 

      Potassium carbonate

    • C. 

      Copper hydroxide

    • D. 

      Ammonium Iodide

  • 2. 
    A salt that is an oxide/hydroxide is called a/an:
    • A. 

      Acid

    • B. 

      Alkali

    • C. 

      Base

    • D. 

      Ion

  • 3. 
    Which of the following is NOT a method of preparing soluble salts?
    • A. 

      Metal-Acid reaction

    • B. 

      Titration

    • C. 

      Carbonate-Acid reaction

    • D. 

      Precipitation

  • 4. 
    Most soluble salt crystals are prepared by crystallisation. One that is not is:
    • A. 

      Sodium Chloride

    • B. 

      Ammonium Iodide

    • C. 

      Gold Nitrate

    • D. 

      Potassium Hydroxide

  • 5. 
    The metal-acid reaction shown in the video is:
    • A. 

      Silver+Nitric acid

    • B. 

      Gold+Nitric acid

    • C. 

      Silver+Hydrochloric acid

    • D. 

      Silver+Ethanoic acid

  • 6. 
    Which of the following is NOT prepared by titration?
    • A. 

      Sodium Sulfate

    • B. 

      Potassium Chloride

    • C. 

      Rubidium Nitrate

    • D. 

      Sodium Hydroxide

  • 7. 
    Precipitaion is where ______________ reactants are added together to form a solution with a precipitate.
    • A. 

      Two insoluble

    • B. 

      Two basic

    • C. 

      Two soluble

    • D. 

      Two acidic

  • 8. 
    9. It is impossible to directly react an insoluble compound to prepare an insoluble salt as a/an _______ would be formed around the compound, preventing further reaction.
    • A. 

      Coating

    • B. 

      Cover

    • C. 

      Cap

    • D. 

      Block

  • 9. 
    Heating to saturation, cooling and filtering is called
    • A. 

      Heat forcing

    • B. 

      Crystallisation

    • C. 

      Evaporation to dryness

    • D. 

      Filtration

  • 10. 
    Insoluble base-acid reaction forms:
    • A. 

      Salt, Carbon Dioxide and water

    • B. 

      Salt and water

    • C. 

      Salt, Ammonia and water

    • D. 

      Salt and hydrogen

  • 11. 
    Add dilute sodium hydroxide solution to a solution of a zinc salt. What is the result?
    • A. 

      White precipitate

    • B. 

      Blue precipitate

    • C. 

      Red-Brown precipitate

    • D. 

      Green precipitate

  • 12. 
    Pale blue precipitate that turns dark blue as excess aqueous ammonia is added. Which is this cation?
    • A. 

      Calcium

    • B. 

      Zinc

    • C. 

      Copper(II)

    • D. 

      Lead(II)

  • 13. 
    Which is the cation which precipitate turns red-brown upon standing?
    • A. 

      Copper (II)

    • B. 

      Iron(III)

    • C. 

      Iron(II)

    • D. 

      Lead(II)

  • 14. 
    White precipitate formed as I add aqueous nitric acid and silver nitrate. What is this anion?
    • A. 

      Iodide

    • B. 

      Sulfate

    • C. 

      Sulfide

    • D. 

      Chloride

  • 15. 
    To a nitrate I add aluminum foil sodium hydroxide. What happens?
    • A. 

      Ammonia gas evolves

    • B. 

      Carbon dioxide gas evolves

    • C. 

      Oxygen gas evolves

    • D. 

      Hydrogen gas evolves

  • 16. 
    Which is the only listed cation that does not produce visible precipitate in aqueous ammonia?
    • A. 

      Aluminum

    • B. 

      Copper(II)

    • C. 

      Calcium

    • D. 

      Lead(II)

  • 17. 
    *Which are the three oxides that react with both acids and bases to form salt and water?
    • A. 

      Zinc, Lead(II), Calcium

    • B. 

      Zinc, Lead(II), Aluminum

    • C. 

      Zinc, Aluminum, Calcium

    • D. 

      Zinc, Calcium, Sodium

  • 18. 
    **What is these oxides called?
    • A. 

      Amphoteric

    • B. 

      Neutral

    • C. 

      Basic

    • D. 

      Acidic

  • 19. 
    Pale yellow precipitate forms after I add nitric acid and aqueous silver nitrate. What is this anion?
    • A. 

      Chloride

    • B. 

      Iodide

    • C. 

      Sulfate

    • D. 

      Hydroxide

  • 20. 
    Which indicator is usually used in titration?
    • A. 

      Screened methyl orange

    • B. 

      Litmus paper

    • C. 

      Phenolphthalein

    • D. 

      Universal indicator