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Which statement is wrong ?...

Which statement is wrong ?

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C
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VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS -THE PERIODIC TABLE -CREATIVE QUESTIONS FOR NEW MODEL EXAMINATION (SECTION -I)
  1. What is general outershell electronic configuration of Halogen ...

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  2. match the above

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  3. Which statement is wrong ?

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  4. How many elements are there in first period in the periodic tab...

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  5. which block elements are called Lanthanoids / actinoids ?

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  6. match it {:("a)",""(58)Ce-""(71)Lu,"i) Actinoids "),("b)",""(90) ...

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  7. Which block elements are called as transition metals ?

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  8. Which block elements are called the inner transition elements ?

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  9. Give two example to semi conductors?

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  10. Which block contains metals only ?

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  11. TO which group Lanthanoids and actinides belongs ?

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  12. Who did experiments to calculate the number of positive charges ...

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  13. A: Elements along a period possess different chemical properties...

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  14. Which property of an element is called as combining power of it...

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  15. In NaH , what is the valency of 'Na' ?

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  16. In CaO, what is the valency of 'Ca' ?

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  17. What is the valency of an element if that element is in the g...

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  18. What are the valencies of 1^(st) and least elements of every pe...

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  19. How does the valency vary on going down a group ?

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  20. Which property of an element is defined as the distance from t...

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