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

10th Standard

    Reg.No. :
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Science

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. The number of periods and groups in the periodic table are__________.

    (a)

    6,16

    (b)

    7,17

    (c)

    8,18

    (d)

    7,18

  2. _____ group contains the member of halogen family.

    (a)

    17th

    (b)

    15th

    (c)

    18th

    (d)

    16th

  3. Chemical formula of rust is ________.

    (a)

    FeO.xH2O

    (b)

    FeO4.xH2O

    (c)

    Fe2O3.xH2O

    (d)

    FeO

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

    (a)

    painting

    (b)

    thinning

    (c)

    galvanization

    (d)

    electroplating

  5. Neon shows zero electron affinity due to _____.

    (a)

    stable arrangement of neutrons

    (b)

    stable configuration of electrons

    (c)

    reduced size

    (d)

    increased density

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