Question Detail

CHM 102 Qualitative and Quantitative Analysis in Organic Chemistry Objective Question

Question

What is the purple coloration test for sulfur in Lassaigne's extract?
Options
A Lead acetate test
B Sodium nitroprusside test
Correct Answer
C Silver nitrate test
D Prussian blue test
Correct Answer

Option B is the correct answer.

Detailed Explanation

Sodium nitroprusside reacts with sulfide ions from the extract to form a purple complex, indicating the presence of sulfur.

Hint

Purple color with nitroprusside.

Question Info