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The oxidation state and valency of Al in...

The oxidation state and valency of `Al` in `[AlCl (H_(2)O)_(5)]^(2+)`

A

`+ 6` & 3

B

`+3` & 6

C

`+ 6, 6`

D

`+3`, & 3

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The correct Answer is:
B
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NARAYNA-PERIODIC TABLE -All Questions
  1. The stable oxidation sate (+8) is exhibited by

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  2. The formula of the compound formed by the pair of elements Al & S is:

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  3. The oxidation state and valency of Al in [AlCl (H(2)O)(5)]^(2+)

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  4. An element has nine positive charges in its nucleus its common oxidati...

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  5. The outermost electronic configuration of most electropositive element...

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  6. The tendency if an element to lose an electron is called

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  7. Oxide that is most acidic

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  8. Three elements, X, Y and Z belong to the same period. Their oxides are...

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  9. The elements 'X', 'Y' and 'Z' form oxides which are acidic, basic and ...

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  10. Chemical similarity between Be and Al is due to

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  11. Pair of ions with polarising power

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  12. Four elements P,Q,R & S have ground state electronic configuration as:...

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  13. The strength of an oxyacid E(OH)(n) , where E is the central atom , de...

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  14. Consider the following ionization energies for a metal M M((g)) rar...

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  15. In general , the configuration of lanthanides in (n-2) f^(1-14) (n-1) ...

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  16. An increase in both atomic and ionic radii with atomic number occurs i...

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  17. Mercury is the only metal which is liquid at 0^(@) C . This is due to...

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  18. Arrange the following ions in order of their inceasing radii : Na^(+) ...

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  19. Which is the correct order of ionisation energies ?

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  20. Fluorine was discovered very late because of its high reactivity . It ...

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