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9th Science - Applied Chemistry Model Question Paper Oct-25 , 2019

Applied Chemistry 

9th Science - Applied Chemistry Model Question Paper

Applied Chemistry Model Question Paper

9th Standard

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Science

Time : 02:00:00 Hrs
Total Marks : 50
    7 x 1 = 7

  1. One Nanometre is

    (a)

    10-7 metre

    (b)

    10-8 metre

    (c)

    10-6 metre

    (d)

    10-9 metre

  2. 1% solution of Iodoform is used as

    (a)

    antipyretic

    (b)

    antimalarial

    (c)

    antiseptic

    (d)

    antacid

  3. The cathode of an electrochemical reaction involves ____________

    (a)

    oxidation

    (b)

    reduction

    (c)

    neutralisation

    (d)

    catenation

  4. The age of a dead animal can be determined by using an isotope of ____________

    (a)

    carbon

    (b)

    iodine

    (c)

    phosphorous

    (d)

    oxygen

  5. This type of food protect us from deficiency diseases.

    (a)

    Carbohydrates

    (b)

    Vitamins

    (c)

    Proteins

    (d)

    Fats

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

    (a)

    isotopes

    (b)

    auxochrome

    (c)

    chromogen

    (d)

    chromophore

  7. Chlorinated hydrocarbons are used as

    (a)

    fertilizers

    (b)

    pesticides

    (c)

    food colourants

    (d)

    preservatives

    8. 5 x 1 = 5

  8. ____________ is an electrochemical cell which converts electrical energy into chemical change(Reaction).

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    Electrolytic cell

  9. Painkiller drugs are called ___________

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    Analgesics

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

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    Ninhydrin

  11. ______________ substances are incorporated in fabrics to prevent the growth of bacteria.

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    Nanoparticle

  12. ______________ Isotope used for the treatment of Blood disorder and Skin disease.

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    Phosphoros - 30

    13. 3 x 1 = 3

  13. Nanoplastics are stable, when they contact with oxygen.

    (a) True
    (b) False

  14. Only redox reactions that take place in a specific device can produce electricity.

    (a) True
    (b) False

  15. Radioisotope used to find the nature of some reactions are called as radiotracer.

    (a) True
    (b) False
    16. 5 x 1 = 5

  16. Antipyretics

    17. (1)

    Quinine

  17. Hyperthyroidism

    18. (2)

    Iodine -131

  18. Nanorobotics

    19. (3)

    Insulin

  19. Plants

    20. (4)

    Fever

  20. Animal

    21. (5)

    Cancer cell identification
    3 x 2 = 6

  21. What is Chemotherapy?

  22. What are called Anaesthetics? How are they classified?

  23. What is Forensic chemistry related to?

    24. 3 x 3 = 9

  24. Define a 'Drug'.

  25. List out the characteristics of 'dye'.

  26. What is balanced diet?

    27. 3 x 5 = 15

  27. Draw the cell diagram of Daniel cell. Give its reactions.

  28. Name various food additives and explain their functions.

  29. What are the characteristics of drugs?

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