Year: 2016
Topic: The d-and f-Block Elements
Time :
1.
Which of the following has longest C – O bond length ? ( Free C - O bond length in CO is 1.128 Å . )
(1). [ Co(CO)
4
]
-
(2). [ Fe(CO)
4
]
2-
(3). [ Mn(CO)
6
]
+
(4). Ni(CO)
4