Q 2188723607.     `(I) Co(CO)_6`
`(II) Co(CO)_5NH_3`
`(III) Co(CO)_4(NH_3)_2`
`(IV) Co(CO)_3(NH_3)_3`
`(V) Co(CO)_2(NH_3)_4`
`(VI) Co(CO)(NH_3)_5`
Which statement is correct for these compounds?

JEE Advanced Paper 1
A

order of Co – C bond length in complexes is I > II > III > IV > V > VI

B

order of Co – C bond length in complexes is VI > V > IV > III > II > I

C

order of Co – C bond strength in complexes is I = II = III = IV = V = VI

D

order of C – O bond length in complexes is I = II = III = IV = V = VI

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