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The elements Eka Aluminium and Eka silic...

The elements Eka Aluminium and Eka silicon named by Mendeleev known today as

A

Gallium and Germanium

B

Aluminium and Silicon

C

Iron and Sulphur

D

Selenium and Tellurium

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The correct Answer is:
A
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The elements eka aluminum and eka sillicon named by Mendeleev known today as

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VMC MODULES ENGLISH-PERIODIC PROPERTIES OF ELEMENTS-IMPECCABLE
  1. Electron affinity of oxygen, sulphur and selenium follows the order

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  2. Element 'X' having electronic configuration 1 s^(2) 2s^(2) 2p^(6), 3s^...

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  3. Triad of transuranic element is

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  4. The most covalent halide is

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  5. Which of the following order is wrong?

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  6. General electronic configuration of lanthanides is

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  7. Which of the following orders is correct for the first ionisation pote...

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  8. Chloride ion and potassium ion are isoelectronic. Then

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  9. Which of the following does not have valence electron in 3d-series ?

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  10. Which one of the following elements is most metallic?

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  11. What is the general electronic configuration for second row transition...

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  12. The ions O^(-2),F^(-),Mg^(2+) and Al^(3+) are isoelectronic. Their ion...

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  13. The elements Eka Aluminium and Eka silicon named by Mendeleev known to...

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  14. The atomic numbers of vanadium (V), chromium (Cr), manganese (Mn) and ...

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  15. Which one of the following groupings represents a collection of isoele...

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  16. Which one of the following ions has the highest value of ionic radius?

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  17. The acidic character of oxides of group 15, N2 O3, P2 O3, As2 O3, Sb2...

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  18. According to Mendeleev's periodic law physical and chemical properties...

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  19. Which of the following sets of elements are called Pnicogens?

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  20. Which of the following is the strongest base?

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