One mole of complex compound `Co(NH_3)_5Cl_3` gives 3 moles of ions on dissolution in water. One mole of same complex reacts with two moles of `AgNO_3` to yield two moles of `AgCl(s)`. The complex is:

Options

A. `[Co(NH_(3))_(4)Cl]Cl_(2) `
B. `[Co(NH_(3))_(4)Cl_(2)].Cl.NH_(3)`
C. `[Co(NH_(3))_(3)].2NH_(2) `
D. `[Co(NH_(3))_(5) Cl] Cl_(2) `

Answer

D

Explanation

`[Co(NH_(3))_(5)]Cl_(2) ` gives 3 mole of ions as
`[Co (NH_(3))_(5) Cl]Cl_(2) hArr [Co(NH_(3))_(5)Cl]^(2+) + 2Cl^(-) ` it also gives two moles of AgCl
`[Co (NH_(3))_(5)Cl]Cl_(2) +2AgNO_(3)to [Co(NH_(3))_(5)Cl](NO_(3))_(2)+2AgCl`