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The elements eka aluminum and eka sillic...

The elements eka aluminum and eka sillicon named by Mendeleev known today as

A

gallium and germanium

B

germanium and silicon

C

aluminium and silicon

D

indium and thallium

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The correct Answer is:
a
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SURA PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-ADDITIONAL CHOOSE THE CORRECT ANSWER
  1. Modern periodic law is .

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  2. Elements which generally exhibit multiple oxidation states and whose i...

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  3. The elements eka aluminum and eka sillicon named by Mendeleev known to...

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  4. Find the incorrect statement.

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  5. Valence electrons in the atom of elements A is 4 and in the element B ...

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  6. Which of the following set has atomic numbers of only representative e...

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  7. Which one among the following exhibits a valency greater than 4?

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  8. Halogens belong to the

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  9. In the first translation series the incoming electron enters the

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  10. The number of elements in the first periods of the modern periodic tab...

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  11. Group 16 of the periodic table is called as

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  12. The metal which is a liquid at room temperature is

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  13. Representative elements are those which belong to

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  14. The element with atomic number 103 is

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  15. Elements whose atoms have their s and p- sublevels complete are the

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  16. Excluding hydrogen and helium , the smallest element in the periodic t...

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  17. The general electronic configuration of s- block element is

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  18. The p- bloks elements comprise of group

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  19. The general electronic configuration of p- block element is

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  20. The general electronic configuration of d- block element is

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