1. Tardigrade
  2. Question
  3. Chemistry
  4. The primary and secondary valencies of cobalt respectively in [ Co ( NH 3)5 Cl Cl Cl 2. are:

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

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

JEE MainJEE Main 2023Coordination Compounds

Solution:

$\left[ Co \left( NH _3\right)_5 Cl \right] Cl _2$
Oxidation number of $Co$ is $+3$.
So primary valency is $3$ .
It is an octahedral complex so secondary valency $6$
or Co-ordination number $6$ .