Which complex among the following gives a white precipitate on treatment with an aqueous solution of barium chloride?

Question

Which complex among the following gives a white precipitate on treatment with an aqueous solution of barium chloride?

Which complex among the following gives a white precipitate on treatment with an aqueous solution of barium chloride?
A. `[Pt(NH_(3))_(4)Br_(2)]Cl_(2)`
B. `[Co(NH_(3))_(5)SO_(4)]NO_(2)`
C. `[Co(NH_(3))_(5)NO_(2)]SO_(4)`
D. `[Pt(NH_(3))_(4)Cl_(2)]Br_(2)`

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct Answer - C
Among the given coordination compounds, `[Co(NH_(3))_(5)NO_(2)]SO_(4)` gives a white precipitate on treatment with an aqueous solution of barium chloride. This can be explained by the following reaction .
`[Co(NH_(3))_(5)NO_(2)]SO_(4)+BaCl_(2)(aqto[Co(NH_(3))_(5)NO_(2)]Cl_(2)+underset("White ppt.")(BaSO_(4)(s))`
The other given compounds do not give white ppt. due to absence of `SO_(4)^(2-)` ions.