COMEDK2023ChemistryGeneral Organic Chemistry
The blue colouration obtained from the Lassaigne's test of nitrogen is due to the formation of
Options
- AFe ₄ [ Fe ( CN )₆ ]₃
- BFe ₂ [ Fe ( CN )₆ ]₅
- CK ₂ [ Fe ( CN )₆ ]₅
- DK ₄ [ Fe ( CN )₆ ]₃
Correct answer
A. Fe ₄ [ Fe ( CN )₆ ]₃
Step-by-step solution
The blue colouration is due to the formation of Fe ₄ [ Fe ( CN )₆ ]₃ (ferriferrocyanide).