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A solution that may contain Cu2+, Bi3+, Sn4+, or Sb3+ ions is treated with thioacetamide in an...

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Chemistry

A solution that may contain Cu2+, Bi3+,Sn4+, or Sb3+ ions is treated withthioacetamide in an acid medium. The black precipitate that formsis partly soluble in strongly alkaline solution. The precipitatethat remains is soluble in 6 M HNO3 and gives only ablue solution on treatment with excess NH3. THe alkalinesolution, when acidified, produces, an orange precipitate. On thebasis of this information, which ions are present, which areabsent, and which are still in doubt?

Answer & Explanation Solved by verified expert
3.9 Ratings (676 Votes)
I say only Sb3 is definite Its IIB sulfide is the only one thats orange when reprecipitated from the OH extract However the orange color could mask the yellow As2S3 and SnS2 precipitates but not the    See Answer
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