Lassaigne's test for nitrogen is negative for | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) Lassaigne's test is used to detect nitrogen,sulfur,and halogens in organic compounds. In this test,the organic compound is fused with metallic sod

Vedclass · Accepted Answer

$NH_2NH_2$

Vedclass · Answer

(D) Lassaigne's test is used to detect nitrogen,sulfur,and halogens in organic compounds. In this test,the organic compound is fused with metallic sodium,which converts nitrogen into sodium cyanide $(NaCN)$. However,compounds that contain nitrogen but do not contain carbon,such as hydrazine $(NH_2NH_2)$,do not form $NaCN$ upon fusion with sodium. Therefore,hydrazine gives a negative result for Lassaigne's test for nitrogen.

Lassaigne's test for nitrogen is negative for which compound?

Similar Questions

Which of the following substances will give the Lassaigne's test for nitrogen?

Why is the Lassaigne's extract boiled with concentrated $HNO_3$ before testing for halogens?

During the fusion of an organic compound with sodium metal,the nitrogen present in the organic compound is converted into:

Why is nitric acid added to sodium extract before adding silver nitrate for testing halogens?

During the detection of phosphorus in an organic compound,a yellow precipitate is formed due to the formation of:

Vedclass Test Series

Exam Paper Generator

Online Exam Module