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Lassaigne’s test for the detection of nitrogen fails in
- a)NH2CONHNH2⋅HCl
- b)NH2NH2⋅HCl
- c)NH2CONH2
- d)C6H5NHNH2⋅HCl
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Lassaigne’s test for the detection of nitrogen fails ina)NH2CONH...
Lassaigne’s test is given by only those compounds which contain both carbon and nitrogen. When compounds containing C and N heated with sodium, then it form NaCN which is easily detected byFeCl3.
Or
Some compounds live hydrazine (NH2⋅ NH2) although contain nitrogen but they do not respond Lassaigne’s test because they do not have any carbon and hence, NaCN is not formed.
Or
Some compounds live hydrazine (NH2⋅ NH2) although contain nitrogen but they do not respond Lassaigne’s test because they do not have any carbon and hence, NaCN is not formed.
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