Lab Activity: Lassaigne's Test
Lab Activity: Lassaigne's Test: Overview
This Topic covers sub-topics such as Experimental Procedure for Lassaigne's Test, Apparatus Required for Lassaigne's Test and, Precautions Involved in Lassaigne's Test
Important Questions on Lab Activity: Lassaigne's Test
Lassaigne's test is used for detection of:
The Lassiagne's extract is boiled with dil before testing for halogens because,
Given below are two statements :
Statement I: Aniline reacts with con. followed by heating at gives p-aminobenzene sulphonic acid, which gives blood red colour in the 'Lassaigne's test'.
Statement II: In Friedel - Craft's alkylation and acylation reactions, aniline forms salt with the catalyst. Due to this, nitrogen of aniline acquires a positive charge and acts as deactivating group.
In the light of the above statements, choose the correct answer from the options given below :
Which of the following set of elements can be detected by Lassaigne's Test?
Cotyledons are also called-
In Lassaigne’s test, the organic compound is fused with a piece of sodium metal in order to:
During the heating step in Lassaigne's Test, why is it important to use a drying tube and a Bunsen burner?
What is the purpose of the drying tube in Lassaigne's Test apparatus?
In Lassaigne's Test, after the extraction of organic compounds into an organic solvent, what reagent is added to the organic layer to test for the presence of sulphur?
What is the purpose of Lassaigne's Test in organic chemistry?
