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Chemistry - section - 2
  1. In an oxygen molecule, two atoms are united by

    2. A.

     One bond
    B.

     Two bonds
    C.

     Three bonds
    D.

     Four bonds

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  2. How many electrons are there in a Hydrogen atom?

    3. A.

     One
    B.

     Two
    C.

     Three
    D.

     Four

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  3. The third shell of an atom can have a maximum of ______ electrons.

    4. A.

     13
    B.

     15
    C.

     18
    D.

     21

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  4. Who developed the model of atomic structure ?

    5. A.

     Bohr and Rutherford
    B.

     Volta
    C.

     Alfred Nobel
    D.

     Faraday

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  5. Which among the following is a covalent compound ?

    6. A.

     Calcium chloride
    B.

     Magnesium fluoride
    C.

     Sodium chloride
    D.

     Carbon tetrachloride

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  6. Atomic number of an atom gives the number of which of the following ?

    7. A.

     Electrons
    B.

     Protons
    C.

     Neutrons
    D.

     Neutrons and protons

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  7. The chemical bahaviour of an atom depends upon

    8. A.

     The number of protons in its nucleus
    B.

     The number of neutrons in the nucleus
    C.

     The number of electrons orbiting around the nucleus
    D.

     The number of nucleons in the nucleus

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  8. Which one of the following has a maximum tendency to form M3 ion ?

    9. A.

     N
    B.

     Bi
    C.

     P
    D.

     As

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  9. A matured mammalian cell without nucleus is

    10. A.

     Lymphocyte
    B.

     Erythrocyte
    C.

     Spermatozoan
    D.

     Oocyte

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  10. Which of the following metals can displace copper from copper sulphate solution ?

    11. A.

     Platinum
    B.

     Mercury
    C.

     Iron
    D.

     Gold

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