Which of the following nitrogen containing compound does not give Lassaigne's test?

Question

Canvas Classes · Accepted Answer

Step 1: Recall the Principle of Lassaigne's Test

In Lassaigne's test, the organic compound is fused with sodium metal. Covalently bonded elements are converted into their sodium salts:
- N →  (detectable as Prussian blue with )
- S →  (detectable as purple with sodium nitroprusside)
- Halogens →

For the Prussian blue test for nitrogen,  must be formed.

Step 2: Which Compounds Can Form NaCN?

For N to be detected, it must be present in a form that can be converted to  during sodium fusion.

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