Question

In which following pair of complexes one of the
complex gives white ppt with aqueous solution
of BaCl2 ?
(1) [PtCl,(NH3)4]Br, and [PtBrą(NH3)2]CI,
(2) (CoCl2(NH3)]NO, and (CoCI(NO2)(NH3)4]CI
(3) (CO(NO2)(NH3)3]Cland (CoCONO)(NH3)3]CI,
(4) (CoBr(NH3)3]SO, and (CO(SO2)(NH3)3]Br​

Answer 1

Answer:

only first complex of options(4)

Explanation:

barium firm ppt of barium sulfate with sulphate ion