When `AgNO_(3)` is added to a solution of `Co(NH_(3))_(5)Cl_(3)`, the precipitate of AgCl shows two ionisable chloride ions. This means:

Options

A. Two chlorine atoms satisfy primary valency and one secondary valency
B. One chlorine atom satisfies primary as well as secondary valency
C. Three chlorine atoms satisfy primary valency
D. Three chlorine atoms satisfy secondary valency

Answer

A

Explanation

Since the precipitate of AgCl shows two ionisable chloride ion the complex must have the structure.
`[Co(NH_(3))_(5)Cl]Cl_(2)+2AgNO_(3) to [Co(NH_(3))_(5)Cl](NO_(3))_(2)+2AgCl`
Hence two chlorine atoms satisfy the primary valency and one secondary valency.