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Ea2O3: EsO2 : GeO2 [ Ea = Eka aluminium,...

`Ea_2O_3`: _____`E_sO_2` : `GeO_2` [ `E_a` = Eka aluminium, `E_s`= Eka silicon]

A

`Ga_2O_3`,

B

`GaO_2`

C

`CaO_2`

D

`Ca_2O_3`

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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE
  1. The formula of oxides and chloride of Eka-Silicon is

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  2. Guess the atomic weight of middle element if the atomic weights ...

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  3. Ea2O3: EsO2 : GeO2 [ Ea = Eka aluminium, Es= Eka silicon]

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  4. Mendeleeff said about eka-aluminium "If I hold it in my hand, it will ...

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  5. Which of the following elements are not available at the time of Mende...

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  6. Which of the following element does not contain '3s' orbital ?

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  7. Why are lanthanides and actinides placed separately at the bot...

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  8. If 'He' is not a inert gas, it should be placed in the group.

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  9. n = 1: 1s ::n = 2: ………….

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  10. Guess the period if it has only '8' elements and K, L shells.

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  11. Which one shrinks in size than atom : i) Na^+ii) Na iii) Cl^- iv) CI

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  12. The ionization potential of 'Be' is more than 'B'. This is due to

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

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  14. The element at the bottom of a group would be expected to show ...

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  15. The outermost main shell of an element is 'M' shell. This element belo...

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  16. Give example where the electronic configuration of an element does not...

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  17. generally show less electronegative character.

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  18. The atomic radius of Cl than Cl^- atom.

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  19. cannot be decomposed into further substance by a physical or chemical ...

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  20. Which one shrinks in size than atom : i) Na^+ii) Na iii) Cl^- iv) CI

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