10th Standard Science English Medium Free Online Test Book Back 1 Mark Questions Part - Three

10th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Science

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

    Part A

    20 x 1 = 20
  1. Artificial radioactivity was discovered by_____

    (a)

    Bequerel

    (b)

    Irene Curie

    (c)

    Roentgen

    (d)

    Neils Bohr

  2. Proton - Proton chain reaction is an example of__________

    (a)

    Nuclear fission

    (b)

    \(\alpha\) decay

    (c)

    Nuclear fusion

    (d)

    \(\beta\) - decay

  3. 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

  4. The basis of modern periodic law is__________

    (a)

    atomic number

    (b)

    atomic mass

    (c)

    isotopic mass

    (d)

    number of neutrons

  5. Neon shows zero electron affinity due to _____.

    (a)

    stable arrangement of neutrons

    (b)

    stable configuration of electrons

    (c)

    reduced size

    (d)

    increased density

  6. Which of the following is hygroscopic in nature?

    (a)

    ferric chloride

    (b)

    copper sulphate penta hydrate

    (c)

    silica gel

    (d)

    none of the above

  7. A single displacement reaction is represented by X(s) + 2HCl(aq) → XCl2(aq) + H2(g). Which of the following(s) could be X. (i) Zn (ii) Ag (iii) Cu (iv) Mg. Choose the best pair.

    (a)

    i and ii

    (b)

    ii and iii

    (c)

    iii and iv

    (d)

    i and iv

  8. The secondary suffix used in IUPAC nomenclature of an aldehyde is ____

    (a)

    - ol

    (b)

    – oic acid

    (c)

    – al

    (d)

    - one

  9. The endarch condition is the characteristic feature of

    (a)

    root

    (b)

    stem

    (c)

    leaves

    (d)

    flower

  10. The body of leech has

    (a)

    23 segments

    (b)

    23 segments

    (c)

    38 segments

    (d)

    30 segments

  11. A patient with blood group O was injured in an accident and has blood loss. Which blood group the doctor should effectively use for transfusion in this condition?

    (a)

    O group

    (b)

    AB group

    (c)

    A or B group

    (d)

    all blood group

  12. Which nervous band connects the two cerebral hemispheres of brain?

    (a)

    thalamus

    (b)

    hypothalamus

    (c)

    corpus callosum

    (d)

    pons

  13. Identify the exocrine gland

    (a)

    Pituitary gland

    (b)

    Adrenal gland

    (c)

    Salivary gland

    (d)

    Thyroid gland

  14. Male gametes in angiosperms are formed by the division of ___________

    (a)

    Generative cell

    (b)

    Vegetative cell

    (c)

    Microspore mother cell

    (d)

    Microspore

  15. The centromere is found at the centre of the ________________ chromosome

    (a)

    Telocentric

    (b)

    Metacentric

    (c)

    Sub-metacentric

    (d)

    Acrocentric

  16. Paleontologists deal with

    (a)

    Embryological evidences

    (b)

    Fossil evidences

    (c)

    Vestigial organ evidences

    (d)

    All the above

  17. We can cut the DNA with the help of

    (a)

    scissors

    (b)

    restriction endonucleases

    (c)

    knife

    (d)

    RNAase

  18. Metastasis is associated with

    (a)

    Malignant tumour

    (b)

    Benign tumour

    (c)

    Both (a) and (b)

    (d)

    Crown gall tumour

  19. Common energy source in village is

    (a)

    electricity

    (b)

    coal

    (c)

    biogas

    (d)

    wood and animal dung

  20. Which is used to build scripts?

    (a)

    Script area

    (b)

    Block palette

    (c)

    stage

    (d)

    sprite

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

Reviews & Comments about 10th Standard Science English Medium Free Online Test Book Back 1 Mark Questions Part - Three

Write your Comment