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The correct statement (s) regarding the ...

The correct statement (s) regarding the binary transition metal carbonyl compounds is (are)
(Atomic numbers: Fe = 26, Ni = 28)

A

Total number of valence shell electrons at metal centre in `Fe(CO)_(5) or Ni(CO)_(4)` is 6

B

These are predominantly low spin in the nature

C

Metal- carbon bond strengthens when the oxidation state of the metal is lowered

D

The carbonyl C-O bond weakens when the oxidation state of the metal is increased

Text Solution

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The correct Answer is:
B, C
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