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Valency of an element indicates...

Valency of an element indicates

A

Equal to number of oxygen atom with which one atom of element combines

B

Double the number of oxygen atom with which one atom of element combines

C

Half of the number of oxygen atom with which one atom of element combines

D

All the above

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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE
  1. One of the following statements is not true. It is

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  2. The atomic radius decreases in a period due to

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  3. Valency of an element indicates

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  4. The formula of oxides and chloride of Eka-Silicon is

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

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

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

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

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

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

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

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  12. n = 1: 1s ::n = 2: ………….

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

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

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

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

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

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

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

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  20. generally show less electronegative character.

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