Year: 2017
Topic: Coordination Compounds
Time :
1.
Correct increasing order for the wavelengths of absorption in the visible region for the complexes of Co
3+
is
(1). [Co(NH
3
)
6
]
3+
, [Co(en)
3
]
3+
, [Co(H
2
O)
6
]
3+
(2). [Co(en)
3
)]
3+
, [Co(NH
3
)
6
]
3+
, [Co(H
2
O)
6
]
3+
(3). [Co(H
2
O)
6
]
3+
, [Co(en)
3
)]
3+
, [Co(NH
3
)
6
]
3+
(4). [Co(H
2
O)
6
]
3+
, [Co(NH
3
)
6
]
3+
, [Co(en)
3
)]
3+