2CuO+CΔ2Cu+CO2 "Lassaigne's test" is used to detect Nitrogen, Halogen, Sulphur, Phosphorus. 4th option is detection of carbon, it is not "Lassaigne's test".
Which one of the following reactions does NOT belong to "Lassaigne's test" ?
NEET UG 2025 — Chemistry Organic Chemistry
2025mcqeasy
Which one of the following reactions does NOT belong to "Lassaigne's test" ?
Official previous-year question
Held on 30 Apr 2025 · Verified 9 Jul 2026.
Options
- A
Na+C+NΔNaCN
- B
2Na+SΔNa2 S
- C
Na+X⟶Δ+NaX
- D
2CuO+CΔ2Cu+CO2
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