During the detection of elements by Lassaigne's test, the covalent compounds are converted into ionic compounds by fusion with metallic sodium. The nitrogen, sulphur and halogens present in the organic compound are converted into cyanides, sulphides and halides respectively which are then detected by their usual tests. An organic compound containing N, S and O as extra elements is fused with sodium metal and then extracted with water. The species which is not present in the solution of extract is

During the detection of elements by Lassaigne's test, the covalent com

1.	During the detection of elements by Lassaigne's test, the covalent compounds are converted into ionic compounds by fusion with metallic sodium. The nitrogen, sulphur and halogens present in the organic compound are converted into cyanides, sulphides and halides respectively which are then detected by their usual tests. An organic compound containing N, S and O as extra elements is fused with sodium metal and then extracted with water. The species which is not present in the solution of extract is
Answer» `CN^(-)` `CNS^(-)` `NO_(3)^(-)` `S^(2-)` ANSWER :C