Applied Chemistry English Medium Free Online Test 1 Mark Questions 2020-2021

9th Standard

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Science

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  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 age of a dead animal can be determined by using an isotope of ____________

    (a)

    carbon

    (b)

    iodine

    (c)

    phosphorous

    (d)

    oxygen

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

    (a)

    Carbohydrates

    (b)

    Vitamins

    (c)

    Proteins

    (d)

    Fats

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

    (a)

    isotopes

    (b)

    auxochrome

    (c)

    chromogen

    (d)

    chromophore

  6. ____________ Present in the lemon juice acts as electrolyte.

    (a)

    Sulphuric acid

    (b)

    Nitric acid

    (c)

    Hydrochloric acid

    (d)

    Citric acid

  7. Which of the foliowing methods is suitable for preventing iron frying pan from rusting?

    (a)

    Applying grease

    (b)

    Applying paint

    (c)

    Applying coating of zinc

    (d)

    All the above

  8. The source of drug of liquid paraffin is _____________.

    (a)

    Micro organism

    (b)

    Minerals

    (c)

    Plants

    (d)

    Animal

  9. Chloroform reacts with oxygen and forms this toxic substance, hence it is not used now

    (a)

    Carbonyl chloride

    (b)

    Carbon di oxide

    (c)

    Carbon monoxide

    (d)

    Carbon di sulphide

  10. Paracetamol is an _____________.

    (a)

    Analgesics

    (b)

    Antipyretics

    (c)

    Antiseptic

    (d)

    Anti malarial

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