Matter One Mark Questions

8th Standard EM

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Science

Time : 00:30:00 Hrs
Total Marks : 20
    10 x 1 = 10
  1. Symbol of Mercury is

    (a)

    Ag

    (b)

    Hg

    (c)

    Au

    (d)

    Pb

  2. A form of non-metal which has high ductility is

    (a)

    nitrogen

    (b)

    oxygen

    (c)

    chlorine

    (d)

    carbon

  3. Which one of metal possess low tensile strength?

    (a)

    Silver

    (b)

    Copper

    (c)

    Zinc

    (d)

    Aluminium

  4. The property which allows metals to be hammered into their sheets is ___________

    (a)

    ductility

    (b)

    malleability

    (c)

    conductivity

    (d)

    tensile strength

  5. The non-metal which conduct current is

    (a)

    carbon

    (b)

    oxygen

    (c)

    aluminium

    (d)

    sulphur

  6. The smallest particle of an element is__________

    (a)

    atom

    (b)

    molecule

    (c)

    Compound

    (d)

    element

  7. Which of the following element is named after a scientist?

    (a)

    Americium

    (b)

    Mercury

    (c)

    Nobelium

    (d)

    Neptunium_

  8. Which of the following does not possess metallic lustre?

    (a)

    Copper

    (b)

    Calcium'

    (c)

    aluminium

    (d)

    gold

  9. Compound obtained from living sources such as plants and animals are called

    (a)

    In Organic Compounds

    (b)

    Organic Compounds

    (c)

    Synthetic Compounds

    (d)

    Artificial Compounds

  10. The compound used for the sterilisation of drinking water is________

    (a)

    baking soda

    (b)

    washing soda

    (c)

    quick lime

    (d)

    bleaching powder.

  11. 5 x 1 = 5
  12. The element which possess character of both metals and non metals are called_______.

    ()

    metalloids

  13. The symbol of Tungsten________

    ()

    W

  14. Material which has a definite volume but no definite shape and has one free surface is called as ______

    ()

    liquid

  15. The chemical name of sugar is__________

    ()

    Sucrose

  16. The non-metal used in the manufacture of gun powder and vulcanization of rubber is

    ()

    Sulphur

  17. 5 x 1 = 5
  18. Atom

  19. (1)

    building block of matter

  20. Element

  21. (2)

    Kalium

  22. Compound

  23. (3)

    atoms of the same kind

  24. Sodium

  25. (4)

    Natrium

  26. Potassium

  27. (5)

    building block of matter

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