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ASSAM ACADEMIC CENTRE-The d and f-block elements-Example
- What are coinage elements?
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- What is the number of unpaired electrons in Fe^(2+) ion (ferrous ion)?
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- What are the colours of Fe^(2+).
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- Name a transition element which does not exhibit variable oxidation st...
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- What is the number of unpaired electrons in Fe^(2+) ion (ferrous ion)?
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- Which of the two is paramagnetic V(IV) and V(V) and why?
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- Which one is more paramagnetic: Fe^(2+) or Fe^(3+) (Z = 26)? Give reas...
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- Mn (II) shows maximum paramagnetic character amongst the divalent ions...
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- What are lanthanoids?
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- Write electronic configuration of Fe^(2+) and Cr^(3+).
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- Write electronic configuration of Ni^(2+) and Cu^(2+).
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- Which oxidation state of Mn is most stable and why?
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- Name three elements which are d-block elements but not transition elem...
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- What are interstitial compounds? Mention principla physical and chemic...
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- Give reason: among transition metals, the highest oxidation state is e...
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- Write the general electronic configuration of f-block elements.
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- Write the general electronic configuration of lanthanoids and actinoid...
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- Name a member of the lanthanoid series which is known to exhibit +4 ox...
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- Name the main ores of lanthanoids?
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- One unpaired electron has a magnetic moment of 1.1 BM. Calculate the m...
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