Given the molecular formula of the hexa coordinated complexes A \[CoC{{l}_{3}}.6N{{H}_{3}}\] B \[CoC{{l}_{3}}.5N{{H}_{3}}\] C \[CoC{{l}_{3}}.4N{{H}_{3}}\]. If the number of co-ordinated \[N{{H}_{3}}\] molecules in A, B and C respectively are 6, 5 and 4, the primary valency in A, B and C are: [DCE 2003]

Given the molecular formula of the hexa coordinated complexes A \[CoC{

1.	Given the molecular formula of the hexa coordinated complexes A \[CoC{{l}_{3}}.6N{{H}_{3}}\] B \[CoC{{l}_{3}}.5N{{H}_{3}}\] C \[CoC{{l}_{3}}.4N{{H}_{3}}\]. If the number of co-ordinated \[N{{H}_{3}}\] molecules in A, B and C respectively are 6, 5 and 4, the primary valency in A, B and C are: [DCE 2003]
A.	6, 5, 4
B.	3, 2, 1
C.	0, 1, 2
D.	3, 3, 3
Answer» C. 0, 1, 2

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