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Which of the following pairs have almost...

Which of the following pairs have almost similar atomic radii ?

A

Nb - Ru

B

Zr - Hf

C

Mo - W

D

Pd - Ag.

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
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  5. Which of the following ions have same number of unpaired electrons?

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  6. Which of the following statements is/are wrong ?

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  7. In which of the following oxides, the first is not more acidic than th...

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  8. Which of the following statements are correct when a mixture of NaCl a...

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  9. Which of the following statements are correct with reference to ferrou...

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  10. Reduction of the metal centre in aqueous permanganate ion involves

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  11. Write lewis dot symbol for following elements : aluminium

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  12. Which of the following statement(s) is (are) correct when. a mixture ...

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  13. What happens when potassium dichromate is heated with sodium chloride ...

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  14. The yellow solution (X) is

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  15. The bond order between C and C in ethyne according to lewis.

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  16. Write lewis dot symbol for following elements : silicon

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  18. Draw lewis structure of PF3

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  19. Draw lewis dot structure of SF2

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  20. The atomic numbers of three lanthanide elements X,Y and Z are 65,68 a...

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