Column (I) Column (II)(p)Eka-Aluminium(i)Germanium(q)Eka-Silicon(ii)Unknown elements at the time of Mendeleev(r)Tellurium-Iodine(iii)Gallium(s)Ga, Ge(iv)Anomalous pair pqrs1iiiiivii2iiiiiiiv3iiiiiiiv4iiiiivii

 Column (I) Column (II)
(p)Eka-Aluminium(i)Germanium
(q)Eka-Silicon(ii)Unknown elements at the time of Mendeleev
(r)Tellurium-Iodine(iii)Gallium
(s)Ga, Ge(iv)Anomalous pair
 pqrs
1iiiiivii
2iiiiiiiv
3iiiiiiiv
4iiiiivii

  1. A

    1

  2. B

    2

  3. C

    3

  4. D

    4

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    Solution:

    Eka- Aluminium known as Gallium 

    Eka-Silicon known as Germanium 

    Te, I2 are known as anomalous pairs 

    Ga and Ge were not discovered at the time of Mendeleev's classification.

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