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Organic Chemistry – Some Basic Principles And Techniques

Question
CBSEENCH11007619

Discuss soda lime test for the detection of nitrogen. 

Solution

Soda lime test: A small amount of an organic compound is heated strongly with soda lime (CaO + NaOH). The liberation of ammonia indicates the presence of nitrogen in the organic compound. 
stack CH subscript 3 CONH subscript 2 with Acetamide below space plus space NaOH space rightwards arrow with CaO on top space space stack CH subscript 3 COONa with Sodium space acetate below space plus space NH subscript 3 space upwards arrow
Limitation: This test is not given by all nitrogenous compounds. Nitro and azo compounds do not respond to this test.