Phenyl isocyanide test is used to identify
aromatic primary amine correct as per chemistry principle.
Ref: NCERT Chemistry Class XI and XII
#chemical test
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Which reagent is used to test for the presence of phenol?
Phenols give a violet coloration with neutral FeCl ₃, which is a characteristic test for their presence. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.
Ref: NCERT Chemistry Textbook - Latest Edition for Academic Session 2026-27 (Rationalized Textbook for Class XI and XII), Chapter: Coordination Compounds and d Block Elements (Latest NCERT 2026-27), Topic: Colour of [Ti(H₂O)₆]³⁺, crystal field theory and d-d transition
Which test produces a foul odor with primary aliphatic amines?
The carbylamine test (CHCl₃ + alcoholic KOH) with primary aliphatic amines forms isocyanides, which have a foul odor, as per the PDF’s chemical properties.
Ref: NCERT Class 12 Chemistry > Chapter 13: Amines > Topic: Nomenclature, Structure and Preparation - Ammonolysis and Gabriel Synthesis
