Practice Test | Kullabs.com
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  • The molecular formula of silver is _______.

    Si
    Ar
    S
    Ag
  • Copper belongs to Group ______.

    Zero
    IB
    IA
    VIIA
  • Copper reacts with warm dilute sulphuric acid in the presence of air to produce ______.

    cupric chloride
    copper sulphate
    cuprous chloride
    copper nitrate
  • Which one is not the ore of copper?

    Cuprite
    Copper glance
    Chalcocite
    Argentite
  • Copper reacts with dilute hydrochloric acid in the presence of air to form ______.

    copper sulphate
    cuprous chloride
    sulphur dioxide
    cupric chloride
  • The atomic number of copper is ______.

    27
    29
    26
    28
  • The correct electronic configuration of copper is ______.

    1s2,2s2,2p6,3s2
    1s2,2s2,2p6,3s2,3p6,3d10,4s1
    1s2,2s2,2p6,3s2,3p6
    1s2,2s2,2p6,3s2,3p6,3d11
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