9th Standard Science English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Seven

9th Standard

    Reg.No. :
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Science

Time : 00:20:00 Hrs
Total Marks : 20

    Part A

    20 x 1 = 20
  1. Unit of time is_________.

    (a)

    km

    (b)

    mm

    (c)

    second

    (d)

    cm

  2. When a ray of light passes from one medium to another medium, refraction takes place when angle of incidence is

    (a)

    0o

    (b)

    45o

    (c)

    90o

  3. Mirrors having spherical surface of reflection are __________________

    (a)

    plane mirror

    (b)

    lenses

    (c)

    spherical mirrors

    (d)

    prism

  4. Gel are______solutions with liquid dispersed in solid

    (a)

    True

    (b)

    Suspension

    (c)

    Colloid

    (d)

    Homogeneous

  5. Among the following the odd pair is

    (a)

    8O18, 17cl37

    (b)

    18Ar40,7N14

    (c)

    14Si30, 15pd31

    (d)

    24cr54, 19K39

  6. The plant which respond to gravity is termed as_________________.

    (a)

    Gravitropism

    (b)

    Thermotropism

    (c)

    Seismotropism

    (d)

    Phototropism

  7. ___________________% of water is used to produce carbohydrates by the plants.

    (a)

    0.01%

    (b)

    0.001%

    (c)

    0.1%

    (d)

    0.6%.

  8. Poikilothermic organisms are

    (a)

    Fish, Frog, lizard, man

    (b)

    Fish, Frog, lizard, cow

    (c)

    Fish, Frog, lizard, snake

    (d)

    Fish, Frog, lizard, crow

  9. Find the incorrect pair.

     

    (a)

     Earth worm - Metamerism

    (b)

    Round worm - Pseudocoelom

    (c)

    Hydra Polyp - Medusa

    (d)

    Star fish - Asymmetrical

  10. The body of soft bodied animals are covered by__________.

    (a)

    Spicules

    (b)

    Scales

    (c)

    Bristles

    (d)

    Mantle

  11. Vitamin E is otherwise known as _________ .

    (a)

    Riboflavin

    (b)

    Thiamine

    (c)

    Tocopherol

    (d)

    Calciferol

  12. Ice does not melt rapidly because of

    (a)

    high specific heat capacity

    (b)

    high latent of fusion

    (c)

    high heat capacity

    (d)

    high latent heat of fusion

  13. An electric generator converts

    (a)

    electrical energy into mechanical energy

    (b)

    mechanical energy into heat energy

    (c)

    electrical energy into electrical energy

    (d)

    mechanical energy into electrical energy

  14. Oxidising agents are also called as____________because they remove electrons form other substances.

    (a)

    electron donors

    (b)

    electron acceptors

    (c)

    electron donors

    (d)

    Ionic

  15. The pH value of neutral solution is______

    (a)

    =7

    (b)

    <7

    (c)

    none of the above

    (d)

    -7

  16. Unstriated muscles are found in

    (a)

    blood vessels

    (b)

    gastrointestinal tract

    (c)

    urinary bladder

    (d)

    all of these

  17. Which of the following is not a part of female reproductive system?

    (a)

    Ovary

    (b)

    Uterus

    (c)

    Testes

    (d)

    Fallopian tube

  18. A musical instrument is producing continuous note. This note cannot be heard by a person having a normal hearing range. This note must then be passing through

    (a)

    wax

    (b)

    vacuum

    (c)

    water

    (d)

    empty vessel

  19. The cathode of an electrochemical reaction involves ____________

    (a)

    oxidation

    (b)

    reduction

    (c)

    neutralisation

    (d)

    catenation

  20. Which one of the following is refered as red worms?

    (a)

    Eudrilus fetida

    (b)

    Eudrilus eugieniae

    (c)

    Perionyx excavatus

    (d)

    Lampito mauritii

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