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Write the formula of an oxo-anion of man...

Write the formula of an oxo-anion of manganese (Mn) in which it shows the oxidation state equal to its group number.

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`MnO_(2)` permanganate ion
Oxidation state of Mn is `MnO_(4)^(-)` is +7.
7 is also the group number of Mn in the periodic table.
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  2. Write the formula of an oxo-anion of chromium (Cr) in which it shows t...

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  6. What is meant by lanthanoid contraction ?

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  7. Why does copper not replace hydrogen from acids ?

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  8. Why is Bi(V) a stronger oxidant than Sb(V) ?

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  9. Write the outer electronic configuration of Cr atom (Z = 24).

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  10. The electronic configuration of a transition element in +3 oxidation s...

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  11. Which is more basic La(OH)(3) or Lu(OH)(3) ? Why ?

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  15. Why is third ionisation energy of manganese [Atomic number = 25] unexp...

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  17. Name the lanthanoid element which exhibits a +4 oxidation state beside...

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  18. What is the difference between the electronic configurations of lantha...

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  19. State a consequence of lanthanoid contraction shown by transition elem...

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  20. Why is that orange solution of K(2)Cr(2)O(7) turns yellow on adding N...

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