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The pi acid ligands donate their lone pa...

The pi acid ligands donate their lone pairs to the metal to form a normal o bond with the latter in addition to it the vacant orbitals accepct electrons from the filled mental orbitals to form a type of pi bonand which suppliments the o bond
Which of the following has highest`M-C` bond lenght?
`[Ni(CO)_(4)]`
(b) `[Mn(CO)_(6)]^(o+)`
(c) `[Fe(CO)_(4)]^(2-)`
(d) `[Co(CO)_(4)]^(Θ)` .

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The correct Answer is:
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The pi acid ligands donate their lone pairs to the metal to form a normal o bond with the latter in addition to it the vacant orbitals accepct electrons from the filled mental orbitals to form a type of pi bonand which suppliments the o bond Which of the following has lowest M-C bond lenght? [Ni(CO)_(4)] (b) [Mn(CO)_(6)]^(o+) (c) [Fe(CO)_(4)]^(2-) (d) [Co(CO)_(4)]^(Θ) .

The pi acid ligands donate their lone pairs to the metal to form a normal o bond with the latter in addition to it the vacant orbitals accepct electrons from the filled mental orbitals to form a type of pi bonand which suppliments the o bond Which of the following has lowest C-O bond lenght? (a) [Fe(CO)_(4)]^(2-) (b) [Co(CO)_(4)]^(Θ) (c) [Ni(CO)_(4)] (d) [Mn(CO)_(6)]^(o+) .

The pi acceptor ligands are those which possess vacant pi- orbitals in addition to the lone pairs of electrons Which of the following complex ion has lowest M-C bond length? (a) [V(CO)_(6)]^(o+) (b) [Mn(CO)_(6)]^(o+) (c ) Ni(CO)_(4) (d) Fe(CO)_(5) .

The pi acceptor ligands are those which possess vacant pi- orbitals in addition to the lone pairs of electrons Which of the following complex ion has the highest C-O bond length ? (a) [V(CO)_(6)]^(o+) (b) Ni(CO)_(4) (c ) Fe(CO)_(5) (d) [Mn(CO)_(6)]^(o+) .

Which of the following has longest C-O bond length? (Free C-O bond length in CO is 1.128Å ).

Predict the hybridisation and geometry of the following complexes. (a) [Fe(CN)_(6)]^(3-) " " (b)[MnBr_(4)]^(2-)" " (c ) [Fe(H_(2)O)_(6)]^(2+)" " (d) [Co(SCN)_(4)]^(2-)

Most of the metal carbonyls obey inert gas rule which states the the compounds in which the central metal atom appears to have attained the configuration of a noble gas either by the sharing or by the transfer of electrons tend to be more stable Which of the following has highest C-O bond length ? (a) [mn(CO)_(6)]^(o+) (b) [Co(CO)_(4)]^(Θ) (c) [Fe(CO)_(4))]^(2-) (d) [Ni(CO)_(4)] .

Draw the structures of the following metal carbonyls (a) [V(CO)_(6)] " " (b) [Cr(CO)_(6)]" " ( c) [Mn_(2)(CO)_(10)] (d) [Fe(CO)_(5)]" " ( e) [Ni(CO_(4)] " "

Which of the following has the highest value for bond order -C_(6)H_(6),CO_(3)^(2-) ,NO^(-) and SO_(4)^(2-) ?

Which of the following species have same bond order and same shape (a) N_(3)^(Θ) (b) O_(3) (c ) CO_(2) (d) NO_(2)^(Θ) .

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