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An isomerr of the complex CoBrCl(2)(en)(...

An isomerr of the complex `CoBrCl_(2)(en)_(2)(H_(2)O)`, on reaction with concentrated `H_(2)SO_(4)` (dehydrating agent), suffers no loss in weight and on reaction with `AgNO_(3)` solution it gives only white precipitate, which is soluble in `NH_(3)` solution.
Q. The correct formula of the complex is:

A

`[CoBrH_(2)O(en)_(2)]Cl_(2)`

B

`[CoCl(en)_(2)H_(2)O]BrCl`

C

`[CoBrCl(en)_(2)]Cl*H_(2)O`

D

`[CoCl_(2)(en)_(2)]Br*H_(2)O`

Text Solution

Verified by Experts

The correct Answer is:
A
`[CoBr(en)_(2)(H_(2)O)]Cl_(2)`
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An isomerr of the complex CoBrCl_(2)(en)_(2)(H_(2)O) , on reaction with concentrated H_(2)SO_(4) (dehydrating agent), suffers no loss in weight and on reaction with AgNO_(3) solution it gives only white precipitate, which is soluble in NH_(3) solution. Q. The incorrect statement about complex is:

In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of reaction, the formula0 of the complex can be predicted. An isomers of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent ) it suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . The correct formula of the complex is :

In coordination chemistry there are a variety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of raction, the formula of the complex can be predicted. An isomer of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent), suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . If all the ligands in the coordination sphere of the above complex be replaced by F^(-) , then the magnetic moment of the complex ion (due to spin only) will be :

In coordination chemistry there are a variety of methods applied to find out the structure of complexes. One method involves treating the complex with known reagents and from the nature of raction, the formula of the complex can be predicted. An isomer of the complex Co(en)_(2)(H_(2)O)Cl_(2)Br , on reaction with concentrated H_(2)SO_(4) (dehydrating agent), suffers loss in weight and on reaction with AgNO_(3) solution it gives a white precipitate which is soluble in NH_(3)(aq) . The number of geometrical isomers of the formula fo the above original complex are (including the complex) :

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