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Eka-aluminium and Eka-silicon are...

Eka-aluminium and Eka-silicon are

A

Gallium and germanium

B

Aluminium and silicon

C

Iron and sulphur

D

Carbon and silicon

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The correct Answer is:
A
Gallium and germanium
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BRILLIANT PUBLICATION-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTIONS (LEVEL-I)
  1. The IUPAC name for the element with atomic number, Z=119 is.

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  2. An element which lies in the same group of the periodic table as mercu...

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  3. Eka-aluminium and Eka-silicon are

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  4. Considering the elements from left to right in the third period of the...

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  5. Which of the following ions has the largest heat of hydration?

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  6. According to Moseley, a straight line graph is obtained on plotting.

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  7. An element having electronic configuration 1s^(2) 2s^(2) 2p^(6) 3s^(2)...

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  8. The first ionisation potential of Na, Mg, Al and Si are in the order

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  9. The pair of elements violating the law of octaves among the following ...

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  10. Diagonal relationship is due to

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  11. The atom having the valence shell electronic configuration 4s^(2)4p^(2...

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  12. The general electronic configuration of transition elements is:

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  13. The ionic radii of isoelectronic species 'N^(3-), O^(2-)' and 'F^-' in...

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  14. Which of the following is isoelectronic series:

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  15. The radius of isoelectronic series

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  16. In a period, the elements having least melting point are:

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  17. Which of the following represents a correct sequence of electronegativ...

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  18. Which of the following order of atomic/ionic radius is not correct

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  19. The best reason to account for the general tendency of atomic diameter...

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  20. In which of the following pairs, the ionisation energy of the first sp...

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