Given below are two statements :
Statement I : In Lassaigne's test, when both nitrogen and sulphur are present in an organic compound, sodium thiocyanate is formed.
Statement II : If both nitrogen and sulphur are present in an organic compound, then the excess of sodium used in sodium fusion will decompose the sodium thiocyanate formed to give NaCN and 
.
choose the most appropriate answer from the options given below:
Text Solution
Verified by ExpertsA
Both statement-I and II are correct. In case, nitrogen and sulphur both are present in an
organic compound, they may combine during fusion to form sodium thiocyanate due to insufficient sodium. When heated with ferrous sulphate, it produces a blood red colouration due to ferric thiocyanate.
Sodium thiocyanate
Neutral 
Ferric thiocyanate
(blood red colouration)
If Na is taken in excess, it decomposes NaSCN and forms 
and NaCN .
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems