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The covalent and van der waals radii of ...

The covalent and van der waals radii of hydrogen respectively are

A

`0.37oversetoA,1.2oversetoA`

B

`0.37oversetoA,0.37oversetoA`

C

`1.2oversetoA,1.2oversetoA`

D

`1.2oversetoA,0.37oversetoA`

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The correct Answer is:
A
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PATHFINDER-CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES-QUESTION BANK
  1. The decreasing order of size of the following ions is

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  2. Na+,Mg^(++),Al^(+3),Si^(+4) are isoelectronics the order of their ioni...

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  3. The covalent and van der waals radii of hydrogen respectively are

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  4. which ion possessses the smallest radius?

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  5. Which of the following isoelectronic ions has lowest ionization energy...

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  6. The first ionization potential in electron volts of nitrogen and oxyge...

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  7. The first ionization potential of Na,Mg,Al and Si are in the order

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  8. The correct order of decreasing first ionization energy is

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  9. The correct order of electron affinity is

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  10. The correct ordrr of electron affinity among the following is

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  11. The lower electron affinity of fluorine than that of chlorine is due t...

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  12. Electron affinity of inert gases is

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  13. Which of the following has the highest electron affinity?

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  14. The electronegativity follows the order

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  15. Which of the following elements represent highly electropositive as we...

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  16. Electronegativity values for element are useful in predicting :

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  17. Which of the follwing order is wrong?

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  18. Gradual addition of electronic shells in the noble gases cause a decre...

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  19. The cause of diagonal relationship is

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  20. In the periodic table with the increase in atomic number the metallic ...

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