10th Standard English Medium Science Subject Periodic Classification of Elements Book Back 1 Mark Questions with Solution Part - II

10th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. The basis of modern periodic law is__________.

    (a)

    atomic number

    (b)

    atomic mass

    (c)

    isotopic mass

    (d)

    number of neutrons

  2. _____ is a relative periodic property.

    (a)

    atomic radii

    (b)

    ionic radii

    (c)

    electron affinity

    (d)

    electronegativity

  3. In the alumino thermic process the role of Al is _____.

    (a)

    oxidizing agent

    (b)

    reducing agent

    (c)

    hydrogenating agent

    (d)

    sulphurising agent

  4. Which of the following inert gases have 2 electrons in the outermost shell.

    (a)

    He

    (b)

    Ne

    (c)

    Ar

    (d)

    Kr

  5. ______ is an important metal to form amalgam.

    (a)

    Ag

    (b)

    Hg

    (c)

    Mg

    (d)

    Al

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