During the halogen test,the sodium fusion extract is boiled with concentrated $HNO_3$ to ... .

The Lassaigne's extract is boiled with dilute $HNO_3$ before testing for halogens because,

The blue color obtained in the Lassaigne's test is due to the formation of which compound?

For testing halogens in an organic compound with $AgNO_{3}$ solution,sodium extract (Lassaigne's test) is acidified with dilute $HNO_{3}$. What will happen if a student acidifies the extract with dilute $H_{2}SO_{4}$ in place of dilute $HNO_{3}$?

Explain the reason for the fusion of an organic compound with metallic sodium for testing nitrogen,sulphur,and halogens.

In $Lassaigne's$ test,the organic compound is fused with $Na$ metal followed by extraction with distilled water. Which of the following is not a possible product of this fusion reaction?