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Answer the following.
What type of isomers are [Co(NH₃)₅Br]SO₄ and [Co(NH₃)₅SO₄]Br? Give a chemical test to distinguish…
What type of isomers are $[\text{Co}(\text{NH}_3)_5\text{Br}]\text{SO}_4$ and $[\text{Co}(\text{NH}_3)_5\text{SO}_4]\text{Br}$? Give a chemical test to distinguish between the two isomers.
Answer
Answer
They are ionisation isomers.
Test: add aqueous $\mathrm{BaCl_2}$ solution. $[\mathrm{Co(NH_3)_5Br}]\mathrm{SO_4}$ gives a white precipitate of $\mathrm{BaSO_4}$ (free $\mathrm{SO_4^{2-}}$), while $[\mathrm{Co(NH_3)_5SO_4}]\mathrm{Br}$ gives none (it gives a pale yellow precipitate of AgBr with $\mathrm{AgNO_3}$ instead).