Two research students were instruced intructed to synthesise the complex
`[Co(NH_(3))_(5)(NO_(2))]Br_(2)`
They synthesised the complexes with identical molecular formula molar mass geometry conductane and spin but they differed in colour Based on the above facts answer the following questions
Complexes synthesised can be
(i) `[Cr(NH_(3))_(5)(NO_(2))Br_(2)`,(ii) `[Cr(NH_(3))_(5)(ONO)]Br_(2)`
(iii) `[Cr(NH_(3))_(5)Br_(2)]NO_(2)` (iv) All of these .

Options

A. Both(i) and (ii)
B. Both(i) and(iii)
C. Both(ii)and(iii)
D. All of these

Answer

A