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ASSAM ACADEMIC CENTRE-The d and f-block elements-Example
- Write electronic configuration of Cr(24)
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- Zn^(2+) salts are colourless while Cu^(2+) salts are coloured. Give re...
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- How would you account for the following? Zn, Cd and Hg are normally no...
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- Why do transition elements show variable oxidation state?
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- Write formula of a compound where the transition metal is in +7 oxidat...
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- On what ground can you say that scandium (Z = 21) is a transition elem...
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- Explain why E^@ for Mn^(3+)||Mn^(2+) couple is more positive than that...
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- Among the ionic species, Sc^(3+), Ce^(4+) and Eu^(2+), which one is a ...
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- Why Sm^(2+), Eu^(2+) and Yb^(2+) ions in solutions are good reducing a...
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- In the transition series with an increase in atomic number the atomic ...
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- Among the lanthanoids, Ce(III) can be easily oxidised to Ce(IV) (Atomi...
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- Why is third ionisation enthalpy of manganese exceptionally high?
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- Why are all salts of scandium white?
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- Why is +2 oxidation state of manganese quite stable while the same is ...
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- Name a transition element which does not exhibit variable oxidation st...
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- How would you account for the following? The enthalpies of atomization...
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- What are transition elements? Give the general electronic configuratio...
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- Why is copper considered a transition metal, although it has completel...
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- Assign a reason for each of the following: The third ionization enthal...
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- Assign a reason for each of the following: The third ionization enthal...
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