Question Detail

CHM 102 Qualitative and Quantitative Analysis in Organic Chemistry Objective Question
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Question

What is the chemical responsible for the Prussian blue color in the nitrogen test?
Options
A Ferric oxide
B Sodium nitroprusside
C Ferric ferrocyanide (Fe₄[Fe(CN)₆]₃)
Correct Answer
D Copper sulfate
Correct Answer

Option C is the correct answer.

Detailed Explanation

Ferric ferrocyanide (Prussian blue) is formed when ferric ions react with ferrocyanide ions produced from the cyanide in the Lassaigne extract.

Hint

Complex iron cyanide.

Question Info

Course: CHM 102
Topic: Qualitative and Quantitative Analysis in Organic Chemistry
Type: Objective
Difficulty: Not specified
Question 803 of 1999
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