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An isomer of the complex Co(en)(2)(H(2)O...

An isomer of the complex `Co(en)_(2)(H_(2)O)IC l_(2)`, on reaction with concentrated `H_(2)SO_(4)`, it suffers loss in weight and on reaction with `AgNO_(3)` solution gives a yellow precipitated which is isoluble in `NH_(3)` solution.
Q. If all the ligandsin the co-ordination sphere of the above complex are replaced by `CN^(-)` ion, then the magnetic moment of the complex ion will be:

A

0.0 BM

B

5.9 BM

C

4.9 BM

D

1.73 BM

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The correct Answer is:
A
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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 :

An isomer of the complex Co(en)_(2)(H_(2)O)IC l_(2) , on reaction with concentrated H_(2)SO_(4) , it suffers loss in weight and on reaction with AgNO_(3) solution gives a yellow precipitated which is isoluble in NH_(3) solution. Q. Total number of space isomers of the formula of the above complex is:

In coordination chemistry there are a variety of methods applied to find out the structures of complexes. One method involves treating the complex with known reagents and from the nature of reaction , the formula of the complex can be predicated. An isomer 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) . If all the ligands in the coordination sphere of the above complex be replaced by SCN^(-) , then the paramagnetic moment of the [Co(SCN)_(4)]^(2-) (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) . Similarly if all the ligands in the coordination sphere br replaced by NO_(2)^(-) , then the magnetic moment of the complex ion (due to spin only) will be :

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