9th Standard English Medium Science Subject Applied Chemistry Book Back 5 Mark Questions with Solution Part - I

9th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. The antibiotic Penicillin is obtained from ___________ 

    (a)

    plant

    (b)

    microorganism

    (c)

    animal

    (d)

    sunlight

  2. The cathode of an electrochemical reaction involves ____________

    (a)

    oxidation

    (b)

    reduction

    (c)

    neutralisation

    (d)

    catenation

  3. Which of the following does not contain natural dyes?

    (a)

    Potato

    (b)

    Beetroot

    (c)

    Carrot

    (d)

    Turmeric

  4. Radiochemistry deals with

    (a)

    oxidants

    (b)

    batteries

    (c)

    isotopes

    (d)

    nanoparticles

  5. Chlorinated hydrocarbons are used as

    (a)

    fertilizers

    (b)

    pesticides

    (c)

    food colourants

    (d)

    preservatives

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