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  • The primary and secondary valencies of cobalt respectively in <img alt="[\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}]\mathrm{Cl}_2" src="https://entrancecorner.oncodecogs.com/gif.latex?%5B%

The primary and secondary valencies of cobalt respectively in [\mathrm{Co}\left(\mathrm{NH}_3\right)_5 \mathrm{Cl}]\mathrm{Cl}_2  are:

Option: 1

3 and 6


Option: 2

2 and 6


Option: 3

3 and 5


Option: 4

2 and 8


Answers (1)

best_answer

\left [ \mathrm{CO\left ( NH_{3} \right )_{5}Cl} \right ]\mathrm{Cl_{2}}

The oxidation state of Co is 6, which is the primary valency is 3.

It is an octahedral complex so secondary valency 6 or Co-ordination number 6.

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mansi

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