Which of the following facts about the complex $[Cr(NH_3)_6]Cl_3$ is wrong

Question

$\begin{array}{1 1}(a)\;\text{The complex is an outer orbital complex}\\(b)\;\text{The complex gives white precipitate with silver nitrate solution}\\(c)\;\text{The complex involves }d^2sp^3\;\text{hybridisation and is octahedral in shape}\\(d)\;\text{The complex is paramagnetic}\end{array}$