Correct formula of the compound which gives a white precipitate with BaCl2 solution, but not with AgNO3 solution, is :
Correct formula of the compound which gives a white precipitate with BaCl2 solution, but not with AgNO3 solution, is :
Show Hint
- [Co(NH3)5Br]SO4
- [Co(NH3)5SO4]Br
- [Pt(NH3)4Cl2]Br2
- [Pt(NH3)4Br2]Cl2
The Correct Option is A
Solution and Explanation
Step 2: [Co(NH3)5Br]SO4 ionises to [Co(NH3)5Br]2+ + SO42\(-\): sulphate is free and bromide is bound, which fits.
Step 3: [Co(NH3)5SO4]Br has free Br\(-\) (gives AgBr) and bound sulphate; the Pt complexes have free Br\(-\) or Cl\(-\) and no sulphate at all.
Answer: (A) [Co(NH3)5Br]SO4
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