Chemistry

7th -

10thgrade

Image

Chromatography and Fractional Distillation

313
plays

15 questions

Show Answers
See Preview
  • 1. Multiple Choice
    1 minute
    1 pt
    Image

    The chromatogram shows that the -------------- spot is a mixture.

    red

    orange

    green

    black

  • 2. Multiple Choice
    1 minute
    1 pt
    Image

    The diagram below shows a chromatogram obtained when a sample X was analysed together with four other known dyes P, Q, R and S. Dye Q was known to cause cancer. Which of the following dye(s) is/are safe for use?

    P only

    S only

    P and S

    P and X

  • 3. Multiple Choice
    20 seconds
    1 pt

    A substance is soluble if it can be dissolved.


    In paper chromatography, the most soluble solute _____________________ .

    does not move from the start point

    stays closest to the start point

    travels furthest away from the start point

    can be found in the middle of the chromatogram

  • Answer choices
    Tags
    Answer choices
    Tags

    Explore all questions with a free account

    Already have an account?