Lassaigne's test is used for detection of elements N, S, X and P. The sodium fused extract is tested for these elements with appropriate reagents. The observation made in to identify the element present in the organic compound.The sodium fusion extrat is treated with FeSO_(4), followed by H_(2)SO_(4), gave blue colour. The element present in the compound is

Lassaigne's test is used for detection of elements N, S, X and P. The

1.	Lassaigne's test is used for detection of elements N, S, X and P. The sodium fused extract is tested for these elements with appropriate reagents. The observation made in to identify the element present in the organic compound.The sodium fusion extrat is treated with FeSO_(4), followed by H_(2)SO_(4), gave blue colour. The element present in the compound is
Answer» sulphur nitrogen CHLORINE Phosphorus Solution :In Lassaigne.s test, ORGANIC COMPOUND containing only N gives purussian Blue COLOUR.