When $\mathrm{AgNO}_3$ solution is added in excess to $1 \mathrm{M}$ solution of $\mathrm{CoCl}_3 . X…
When $\mathrm{AgNO}_3$ solution is added in excess to $1 \mathrm{M}$ solution of $\mathrm{CoCl}_3 . X \mathrm{NH}_3$, one mole of $\mathrm{AgCl}$ is formed. What is the value of ' $X$ '?
$1$
$4$
$3$
$2$
Solution
It means that there is only one counter ion, i.e., the possible complex is $\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right] \mathrm{Cl}$. Hence, $X$ is 4 .