In Lassaigne's test the organic compound is fused with Na followed by extraction with distilled water. Which of the following is not the possible product of this fusion reaction.
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Complete Question:
In Lassaigne's test the organic compound is fused with Na followed by extraction with distilled water. Which of the following is not the possible product of this fusion reaction:
(A) NaX
(B) NaCN
(C) NaNC
(D) Na₂S
Correct Answer:
The correct answer is option (C) NaNC
- Nitrogen, sulphur, halogens and phosphorous which are present in an organic compound are detected by Lassaigne's test.
- They are converted from covalent form into ionic form by fusion with sodium before proceeding further.
- Only Cynides, sulphides and halides can be detected by this test.
- Isocyanides cannot be detected by this test.
- So it is the correct answer.
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