what the secondary valency of cobalt in [Co(C204)3]
Answers
Answer:
CHEMISTRY
Which of the following primary and secondary valencies are not correctly marked against the compound?
November 22, 2019avatar
Dola Singhal
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ANSWER
Primary valency is satisfied by anions or cations. Secondary valency refers to coordination number.
In [Cr(NH
3
)
6
]Cl
3
primary valency is 3 and secondary valency is 6. Since chromium is coordinated to 6 ammonia ligands, secondary valency is 6. Since chlorine ions have −1 charge and there are 3 of them, primary valency is 3.
In K
2
[PtCl
4
] primary valency is 2 and secondary valency is 4. Since platinum is coordinated to 4 chloride ligands, secondary valency is 4. Since potassium ions have +1 charge and there are 2 of them, primary valency is 2.
In [Pt(NH
3
)
2
Cl
2
] primary valency is 0 and secondary valency is 4. Since platinum is coordinated to 2 ammonia and 2 chloride ligands, secondary valency is 4. Since no ions are attached to the complex, primary valency is 0.
In [Cu(NH
3
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)
4
]SO
4
primary valency is 2 and secondary valency is 4. Since, copper is co-ordinated to 4 ammonia ligands, secondary valence is 4. Since sulphate ions has −2 charge, primary valence is 2.
Answer:
3 is the secondary valence.
Explanation:
Secondary valence refers to the coordination number of the central metal in the compound.