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Which of the following metals exhibits m...

Which of the following metals exhibits more than one oxidation state?

A

`Na`

B

`Mg`

C

`AI`

D

`Fe`

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The correct Answer is:
D
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RESONANCE ENGLISH-PERIODIC TABLE & PERIODICITY-Exercise
  1. Which can have both +ve and -ve oxdiation states in their compounds

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  2. The oxidation state of nitrogen varies from:

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  3. Which of the following metals exhibits more than one oxidation state?

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  4. Electrons of which subshell do not partcipate in bonding due to inert ...

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  5. Thallium shows different oxidation states due to :

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  6. In which of the following elements +3 oxidation state is more stable t...

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  7. Which of the following is correct order of stability:

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  8. Select correct statement about radius of an atom:

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  9. Choose the correct order of atomis radii of Fluorine and Neon (in pm) ...

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  10. The size of isoelectronic species O^(-2) F^(-) and Na^(+) is affected ...

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  11. Which of the following order of atomic/ionic radius is not correct?

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  12. Which one of the following statements is incorrect in relation to ioni...

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  13. The first ionisation enthalpies (in eV) of N & O are respectively give...

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  14. The first ionisation potential of Na,Mg,Al and Si are in the order

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  15. Which represents alkali metals (i.e. 1^(st) group metals) based on (IE...

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  16. Which of the following relation is correct with respect to first (I) a...

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  17. Among halogens, the correct order of amount of energy released in elec...

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  18. Which of the following will have the most negative electron gain entha...

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  19. The order of electron gain enthalpy (magnitude) of O, S and Se is:

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  20. Electronic configurations of four elements A,B,C and D are given below...

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