Applied Chemistry Book Back Questions

9th Standard

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Science

Time : 00:40:00 Hrs
Total Marks : 25
    3 x 1 = 3
  1. Which of the following does not contain natural dyes?

    (a)

    Potato

    (b)

    Beetroot

    (c)

    Carrot

    (d)

    Turmeric

  2. The groups responsible for the colour of an organic compound is called

    (a)

    isotopes

    (b)

    auxochrome

    (c)

    chromogen

    (d)

    chromophore

  3. Chlorinated hydrocarbons are used as

    (a)

    fertilizers

    (b)

    pesticides

    (c)

    food colourants

    (d)

    preservatives

  4. 3 x 1 = 3
  5. ____________ is an electrochemical cell which converts electrical energy into chemical change(Reaction).

    ()

    Electrolytic cell

  6. Aspirin is an _____________

    ()

    Analgesic and Antipyretic

  7. _____________ is a chemical used in finger print analysis.

    ()

    Ninhydrin

  8. 5 x 1 = 5
  9. Antipyretics

  10. (1)

    Fever

  11. Corrosion prevention

  12. (2)

    Iodine -131

  13. Hyperthyroidism

  14. (3)

    Cancer cell identification

  15. Nanoparticle

  16. (4)

    Large surface area

  17. Nano robotics

  18. (5)

    Electroplating

    2 x 2 = 4
  19. What is Chemotherapy?

  20. What is Forensic chemistry related to?

  21. 2 x 5 = 10
  22. Draw the cell diagram of Daniel cell. Give its reactions.

  23. Name various food additives and explain their functions.

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