Chemistry Question on coordination compounds

Question

The color of $CoCl _{3} \cdot 5 NH _{3} \cdot H _{2} O$ is

Answer 1

Solution

$CoCl _{3} .5 NH _{3} \cdot H _{2} O$ is pink in colour. It has $Co ^{3+}$ ion with $[ Ar ] 3 d ^{6}$ electronic configuration. It has $4$ unpaired electrons.