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Practice question

Question

Which method is used to detect sulphur in an organic compound by forming a violet-colored complex?

Options

Choose one · Correct answer highlighted

Explanation

In Lassaigne’s test, sulphur forms Na₂S, which reacts with sodium nitroprusside to produce a violet-colored complex, Na₄[Fe(CN)5NOS] . This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

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