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11th Standard English Medium Chemistry Subject Periodic Classification of Elements Creative 1 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. An element M combines with CI. What would be the formula of the compound obtained if M has a valence of 2?

    (a)

    MCI

    (b)

    MCl2

    (c)

    M2CI

    (d)

    M2Cl2

  2. Law of triad was unable to explain for the element

    (a)

    Ca, Sr and Ba

    (b)

    Fe, Co, Ni

    (c)

    Li, Na, K

    (d)

    CI, Br, I

  3. Law of octaves was proposed by _____

    (a)

    Lothar Meyer

    (b)

    Johann Dobereiner

    (c)

    Newland

    (d)

    Mendeleev

  4. ______ proposed modern periodic law.

    (a)

    Henry Moseley

    (b)

    Mendeleev

    (c)

    Newland

    (d)

    Dobrainer

  5. The atomic weight of Au is ______

    (a)

    195

    (b)

    197

    (c)

    198

    (d)

    196

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