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The pair of elements that have similar c...

The pair of elements that have similar chemical properties are

A

R' and 'D' are correct

B

R' is correct but 'D' is wrong

C

R' is wrong but 'D' is correct

D

R' and 'D' are wrong

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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE
  1. Assertion (A) : Lanthanides and Actinides are called as Inner  Transit...

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  2. Why do elements in the same group have similar physical and chemical p...

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  3. The pair of elements that have similar chemical properties are

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  4. Pavan (P) : The general electronic configuration of alkali metal famil...

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  5. Assertion (A): ‘H' & 'He' belongs to period - 1. Reason (R) : 'H & 'He...

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  6. Assertion (A): The first period in periodic table contain only two ele...

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  7. Suneetha (A) : Third period contain 18 elements, because it has 3 subs...

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  8. James (A) : The positive ions of an element has less in size than its ...

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  9. Balu (B) : Valence of an element with  respect to hydrogen is the numb...

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  10. Valeney of Ca is

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  11. Assertion (A) : Atomic radii increase from top to bottom in a group of...

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  12. Assertion (A): Atomic radii of elements decrease across a period from ...

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  13. Assertion (A) : The size of Na^+ ion is less than 'Na' atom. Reason (R...

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  14. It is easier to remove one electron from O than N because Nitrogen has

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  15. Which of the following property decreases down a group :

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  16. Actinides belongs to period.

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  17. Ionization energy is not depending on

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  18. Moseley calculated the number of positive charges in the atoms by anal...

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  19. Group 13(IIIA) elements are known as

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  20. The incompletely filled period is

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