The molecular formula of a coordination compound is CrBr3.4H2O.It requires one mole of AgNO3 to form pale yellow precipitate of AgBr. What is the structural formula of the compound?
1
[Cr(H2O)4] Br3
2
[CrBr(H2O)3] Br2 .H2O
3
[CrBr3(H2O)3] .H2O
4
[CrBr2(H2O)4] Br.