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Answer the following questions : Iden...

Answer the following questions :
Identify the metal and justify your answer :
(i) Carbonyl `M(CO)_(5)` (ii) `MO_(3)F`

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(i) In complexes of first transition metal ions, the effective atomic number (EAN) of the central metal atom will be 36. Now in `M(CO)_(5)`, five ligands (i.e., CO) account for 10 electrons. Thus the metal atom will have a total of `36-10=26` electrons. So the metal M is iron (Fe), and the carbonyl compound is `Fe(CO)_(5)`. (ii) In `MO_(3)F` , let the oxidation state of M be x. Therefore `x+3xx(-2)+(-1)=0`, or `x=+7`. So M must be Mn, because manganese shows an oxidation state of + 7. Thus the compound is `MnO_(3)F`.
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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -SOLVED NCERT EXEMPLAR PROBLEMS (Long Answer Type)
  1. Identify A to E and also explain the reactions involved.

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  3. When an oxide of manganese (A) is fused with KOH in the presence of an...

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  4. On the basis of lanthanoid contraction, explain the following : Nat...

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  5. On the basis of lanthanoid contraction, explain the following : Tre...

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  6. On the basis of lanthanoid contraction, explain the following : Sta...

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  7. On the basis of lanthanoid contraction, explain the following : Rad...

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  8. On the basis of lanthanoid contraction, explain the following : Tre...

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  9. Answer the following questions : Which element of the first transit...

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  10. Answer the following questions : Which element of the first transit...

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  11. Answer the following questions : Which element of the first transit...

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  12. Answer the following questions : Identify the metal and justify you...

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  13. Mention the type of compounds formed when small atoms like H, C and N ...

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  14. Transition metals can act as catalysts because these can change their ...

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  15. Mention any three processes where transition metals acts as catalysts.

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  16. A violet compound of manganese (A) decomposes on heating to liberate o...

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