Experiments

  1. When conducting a qualitative test for reducing sugar, how many steps are there?
    • 6 steps.
    • Label 2 boiling tubes A and B
    • Place glucose solution in A
    • Place water into B
    • Add Benedict’s solution an swirl
    • Place tubes in water bath and heat
    • Expected result- A positive- brick red and B neg- blue
  2. When conducting a qualitative test for reducing sugar, what is the expected result?
    Expected result: A positive- brick red and B negative- blue
  3. When conducting a qualitative test for reducing sugar, what equipment is needed?
    • Two boiling tubes
    • Glucose solution (or apple)
    • Water (control)
    • Benedict’s solution
    • Water bath and warm water (possibly thermometer)
  4. What is used to test for reducing sugar?
    • Benedict’s solution
    • Positive- brick red
    • Negative- blue

    • Glucose solution/ apple
    • Water
  5. Which of the food experiments involve the boiling tubes to be placed in a water bath and heated?
    Test for reducing sugar
  6. When conducting a qualitative test for starch, how many steps are there?
    • 6 steps
    • Label 2 boiling tubes A and B
    • Place starch solution into tube A
    • Place water into tube B
    • Add iodine solution to each
    • Swirl both and observe colour change
    • Expected result: A pos- blue/black and B neg- iodine is reddish.
  7. When conducting a qualitative test for starch, what equipment is needed?
    • 2 boiling tubes
    • Starch solution (or bread/potato)
    • Water (control)
    • Iodine solution (reddish colour)
  8. When conducting a qualitative test for starch, what is the expected result?
    Expected result: A positive- blue/black and B negative- red
  9. What is used to test for starch?
    • Iodine solution (red)
    • Positive: blue or black
    • Negative: red
Author
jacquelineglynn
ID
363381
Card Set
Experiments
Description
Questions
Updated