Write IUPAC name for each of the following and indicate oxidation state, electronic configuration and coordination number. Also give stereochemistry, magnetic moment :
`CrCl_(3)(py)_(3)`

Explanation

IUPAC name : trichloridotripyridinechromium (III)
Coordination number of `Cr=3xx1+3xx1=6`
Stereochemistry = octahedral
Oxidation state of `Cr=x+3xx(-1)+3xx0=0, x=+3`
Electronic configuration of `Cr^(3+)=3d^(3)=t_(2)^(3)e_(g)^(0)`
No. of unpaired electrons `=3,mu = 3.87BM`