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The correct order of radii is:...

The correct order of radii is:

A

`N lt Be lt B`

B

`F^(-) lt O^(2-) lt N^(3-)`

C

`Na gt Li lt K`

D

`Fe^(2+) gt Fe^(3+) gt Fe^(4+)`

Text Solution

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The correct Answer is:
B, C, D
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GRB PUBLICATION-PERIODIC TABLE-Multiple Objective Type
  1. An element belongs to 3rd period and group-13 of the periodic table. W...

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  2. Which of the following statements are correct?

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  3. Which of the following statements (s)is/are true?

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  4. Which of the following statement(s) is/are true for IA elements?

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  5. The process(es) requiring the absorption of energy is/are:

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  6. Predict block of element whose outer electron set of quantum number n,...

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  7. Which of the following are neutral oxide?

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  8. Which of the following statement(s) is/are correct?

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  9. In which of the following pairs, the first atom is larger than the sec...

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  10. Among the given elements, select those, which are not at the peack of ...

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  11. An element has electronic configuration as 1s^(2),2s^(2)2p^(6),3s^(2)3...

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  12. The correct order of radii is:

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  13. Choose the correct statement.

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  14. Which of the following pair of elements are not of same group of perio...

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  15. Which of the following statements are incorrect?

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  16. Which of the following processes involve absorption of energy?

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  17. In which of the following arrangements the order which is correct acco...

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  18. which of the following order of ionisation energy is correct?

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  19. Which of the following statements is/are correct?

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  20. Which of the following are endothermic process?

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