Concepts And Types Of Acids And Bases Quiz

10 Questions | Total Attempts: 127

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Concepts And Types Of Acids And Bases Quiz

Acids, bases and salts are three main categories of chemical compounds. They have certain definite properties which distinguish one class from the other. The sour taste of many fruits and vegetables, lemon for instance, is due to various types of acids present in them. The digestive fluids of most animals and humans also contain acids. The word 'acid' is derived from a Latin word, which means "sour". There are a lot of sun facts about acids and salts, how good are you?


Questions and Answers
  • 1. 
    Litmus is a common indicator used to tell whether something is an acid or a base. If you dip a piece of blue litmus paper into an acid, what color will it turn?
    • A. 

      Yellow

    • B. 

      None, it will stay blue

    • C. 

      Red

    • D. 

      Purple

  • 2. 
    If you dip a piece of red litmus paper into an acid, what color will it turn?
    • A. 

      Purple

    • B. 

      Blue

    • C. 

      None, it will stay red

    • D. 

      Yellow

  • 3. 
    Phenolphthalein is another acid-base indicator. Which of these is used as an abbreviation for this indicator?
    • A. 

      PNLPH

    • B. 

      PHTH

    • C. 

      PPTN

    • D. 

      PLTL

  • 4. 
    If you were to drop some phenolphthalein into a base, what color would it turn?
    • A. 

      Red

    • B. 

      Yellow

    • C. 

      Clear

    • D. 

      Purple-Pink

  • 5. 
    Goldenrod paper comes as little strips, similar to litmus. If you were to dip a piece of goldenrod paper in a base, what color would it turn?
    • A. 

      Orange

    • B. 

      Green

    • C. 

      Yellow

    • D. 

      Red

  • 6. 
    Now on to universal indicator. What color would this turn in a very strong acid?
    • A. 

      Purple

    • B. 

      Yellow

    • C. 

      Red

    • D. 

      Green

  • 7. 
    What color would universal indicator turn if a substance was neutral?
    • A. 

      Blue

    • B. 

      Yellow

    • C. 

      Green

    • D. 

      Red

  • 8. 
    If you were to put some universal indicator in a very strong base, what color would it turn?
    • A. 

      Purple

    • B. 

      Yellow

    • C. 

      Green

    • D. 

      Red

  • 9. 
    One unconventional indicator is red cabbage juice. What color will this common liquid turn in a base?
    • A. 

      Purple

    • B. 

      Yellow

    • C. 

      Red

    • D. 

      Blue-Green

  • 10. 
    An indicator that you wouldn't find at home is Phenol Red. What color does this indicator turn in an acid?
    • A. 

      Red

    • B. 

      Pink

    • C. 

      Green

    • D. 

      Yellow

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