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NEET Sample Paper NEET Sample Test Paper-59

  • question_answer
    EKa- aluminium and EKa-silicon are known as:

    A) Gallium and germanium

    B) Aluminum and silicon

    C) Iron and sulphur

    D) Proton and silicon

    Correct Answer: A

    Solution :

    [a] Gallium and germanium Eka-term introduced by Mendeleev for element that were predicted but unknown. All eka-elements were discovered later. Eka-aluminium was called gallium (1875) and eka silicon was germanium (1886)


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