10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 10

10th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Science

Time : 00:35:00 Hrs
Total Marks : 35

    Part A

    35 x 1 = 35
  1. The resistance of a body to change its state of rest is called

    (a)

    inertia of rest

    (b)

    inertia of motion

    (c)

    momentum

    (d)

    inertia of direction

  2. The physical quantity which is equal to change in momentum is

    (a)

    velocity

    (b)

    acceleration

    (c)

    force

    (d)

    impulse

  3. For air, the refractive index is

    (a)

    1

    (b)

    infinity

    (c)

    0

    (d)

    1

  4. The image formed by retina of human eye is

    (a)

    Virtual and eract

    (b)

    Real & inverted

    (c)

    Virtual & inverted

    (d)

    Real & erect

  5. In compound microscope, as compare to eye piece, objective lens has _____ focal length.

    (a)

    -ve focal length

    (b)

    Zero

    (c)

    Small

    (d)

    Large

  6. At constant temperature volume is inversely proportional to pressure of a gas is known as

    (a)

    Boyle's law

    (b)

    Charles

    (c)

    Avogadro

    (d)

    None

  7. Which of the following laboratory apparatus is used during the verification of Ohm's law?

    (a)

    Voltmeter

    (b)

    Ammeter

    (c)

    Rheostat

    (d)

    All the above

  8. Choose the correct statement

    (a)

    Nichrome has low resistance and high melting point

    (b)

    Fuse wire has high resistance and low melting point

    (c)

    Nichrome has high resistance and low melting point

    (d)

    Fuse wire has low resistance and high melting point

  9. Earthquake produces ______.

    (a)

    Ultrasound

    (b)

    Infrasound

    (c)

    audible sound

    (d)

    none

  10. Artificial radioactivity was discovered by_____

    (a)

    Bequerel

    (b)

    Irene Curie

    (c)

    Roentgen

    (d)

    Neils Bohr

  11. A chain reaction is continuous due to

    (a)

    large mass defect

    (b)

    large energy

    (c)

    production of more neutrons in fission

    (d)

    None of these

  12. U238 is fissionable _________ neutrons.

    (a)

    only by fast

    (b)

    only by slow

    (c)

    both fast and slow

    (d)

    by thermal

  13. Which of the following represents 1 amu?

    (a)

    Mass of a C – 12 atom

    (b)

    Mass of a hydrogen atom

    (c)

    1/12th of the mass of a C – 12 atom

    (d)

    Mass of O – 16 atom

  14. The atomic number of an element is 12 and its mass number is 24. The number of electrons, protons and neutrons respectively will be

    (a)

    12, 12, 24

    (b)

    24,12,12

    (c)

    12,12,12

    (d)

    12, 24,12

  15. The volume occupied by 4.4 g of CO2 at STP is:

    (a)

    22.4l

    (b)

    2.24l

    (c)

    0.224l

    (d)

    0.1l

  16. The process of coating the surface of metal with a thin layer of zinc is called______.

    (a)

    painting

    (b)

    thinning

    (c)

    galvanization

    (d)

    electroplating

  17. The distance from the centre of the nucleus to the outer most electron in an ion is termed as _________ radii.

    (a)

    atomic

    (b)

    ionic

    (c)

    Covalent

    (d)

    both (b) and (c)

  18. Solubility of NaCl in 100 ml water is 36 g. If 25 g of salt is dissolved in 100 ml of water how much more salt is required for saturation _____________

    (a)

    12g

    (b)

    11g

    (c)

    16g

    (d)

    20g

  19. Hygroscopic substances are used as __________ agents.

    (a)

    oxidizing

    (b)

    reducing

    (c)

    decarbocyleting

    (d)

    drying

  20. Photolysis is a decomposition reaction caused by

    (a)

    heat

    (b)

    electricity

    (c)

    light

    (d)

    mechanical energy

  21. The product formed when calcium oxide reacts with water is

    (a)

    Slaked lime

    (b)

    Carbon dioxide

    (c)

    Calcium oxide

    (d)

    Oxygen gas

  22. Which of the following are used as anaesthetics?

    (a)

    Carboxylic acids

    (b)

    Ethers

    (c)

    Esters

    (d)

    Aldehydes

  23. Ethanoic acid turns

    (a)

    red litmus blue

    (b)

    blue litmus red

    (c)

    red litmus green

    (d)

    blue litmus green

  24. Which is formed during anaerobic respiration

    (a)

    Carbohydrate

    (b)

    Ethyl alcohol

    (c)

    Acetyl CoA

    (d)

    Pyruvate

  25. During transpiration there is loss of

    (a)

    carbon dioxide

    (b)

    oxygen

    (c)

    water

    (d)

    none of the above

  26. The number of______ increases during allergy.

    (a)

    Basophil

    (b)

    RBC

    (c)

    Eosinophil

    (d)

    Monocyte

  27. Dendrites transmit impulse ______ cell body and axon transmit impulse ______ cell body.

    (a)

    away from, away from

    (b)

    towards, away from

    (c)

    towards,towards

    (d)

    away from, towards

  28. ______ is the innermost, thin delicate membrane richly supplied with blood.

    (a)

    Durameter

    (b)

    Myelin sheath

    (c)

    Piameter

    (d)

    Arachnoid membrane

  29. Identify the exocrine gland

    (a)

    Pituitary gland

    (b)

    Adrenal gland

    (c)

    Salivary gland

    (d)

    Thyroid gland

  30. A single highly coiled tube where sperms are stored, get concentrated and mature is known as

    (a)

    Epididymis

    (b)

    Vasa efferentia

    (c)

    Vas deferens

    (d)

    Seminiferous tubules

  31. The best way of direct dating fossils of recent origin is by

    (a)

    Radio-carbon method

    (b)

    Uranium lead method

    (c)

    Potassium-argon method

    (d)

    Both (a) and (c)

  32. DNA fingerprinting is based on the principle of identifying _______ sequences of DNA

    (a)

    single stranded

    (b)

    mutated

    (c)

    polymorphic

    (d)

    repititive

  33. Coronary heart disease is due to

    (a)

    Streptococci bacteria

    (b)

    Inflammation of pericardium

    (c)

    Weakening of heart valves

    (d)

    Insufficient blood supply to heart muscles

  34. Common energy source in village is

    (a)

    electricity

    (b)

    coal

    (c)

    biogas

    (d)

    wood and animal dung

*****************************************

Reviews & Comments about 10th Standard Science English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 10

Write your Comment