**Statement I:** and both have a yellow colour. **Statement II:** and can be separated using yellow — Qualitative and Quantitative Analysis Chemistry Question
Question
**Statement I:** $CdS$ and $As_2S_3$ both have a yellow colour. **Statement II:** $CdS$ and $As_2S_3$ can be separated using yellow ammonium sulphide.
Answer: A
💡 Solution & Explanation
Both form yellow sulphide precipitates. However, $As_2S_3$ is a Group IIB sulphide and dissolves in Yellow Ammonium Sulphide (YAS) due to its amphoteric nature, while $CdS$ (Group IIA) remains insoluble.
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