Which are correct match?

(i) Eka silicon-Be (ii)Eka aluminium-Ga (iii) Eka mangenese-Tc (iv) Eka scandium-B

  1. A

    (ii) and (iii)

  2. B

    (i), (ii) and (iv)

  3. C

    (i) and (iv)

  4. D

    All of these

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    Solution:

    The prefix "Eka" is used to denote the first element in the same family as the one to whose name it is prefixed, for as "Eka manganese," in the periodic table.

    Correct matches are,

     (ii)Eka aluminium-Ga 

    (iii) Eka mangenese-Tc

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