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Metal Carbonyls

12. The metal...

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12. The metal carbonyl which is most oxidizing among the following is 1). Cr(CO)6 2). Fe(CO)5 3). V(CO)6 4). Ni(CO)4

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Q. Which amongst the following metal carbonyls are inner orbital complexes with diamagnetic property?
(I)

N i (C O)_{4}

F e (C O)_{5}

V (C O)_{6}

C r (C O)_{6}

Select the correct answer from the codes gives below:

Q. Consider the following complexes

[V (C O)_{6}]^{-}, [C r (C O)_{6}]

[M n (C O)_{6}]^{+}

. Then incorrect statement(s) about metal carbonyls is /are

Q. Among the metal carbonyls

[M n (C O)_{6}]^{+}, [T i (C O)_{6}], [C r (C O)_{6}]

[V (C O)_{6}]^{-}

C - O

bond order would be lowest in :

I R

stretchin frequencies of free

C O

C O

[V (C O)_{6}]^{-}, [C r (C O)_{6}]^{-}

[M n (C O)_{6}]^{-}

2143 c m^{- 1}, 1860 c m^{- 1}, 2000 c m^{- 1}

2090 c m^{- 1}

, respectively. Then correct statement about metal carbonyls is?

Q. Consider the following complexes:
1)

F e (C O)_{5}

N i (C O)_{4}

K_{4} [F e (C N)_{6}]

N a_{3} [C u (S C N)_{4}]

Which of the above complex obeys

E A N

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