Detection Of Sulfur
In Lassaigne's test for sulfur, sodium nitroprusside gives a violet coloration due to formation of:
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About This Question
- Subject
- chemistry
- Chapter
- principles related to practical chemistry
- Topic
- detection of sulfur
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
S2- complex with nitroprusside ion
Sulfur in sodium fusion extract is present as sulfide ion (S2-). With sodium nitroprusside, sulfide forms a violet-colored complex, which confirms sulfur. Other species listed correspond to different analytical tests.
This medium difficulty chemistry question is from the chapter principles related to practical chemistry, covering the topic of detection of sulfur. It appeared in the 2025 exam.
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