For exams, carbylamine test gives foul smell only with 1° amines, and Hinsberg’s test: 1° amine gives soluble product with KOH, 2° gives insoluble, 3° gives no reaction. But in my tuition class, I tell my students to first *write the reaction*—many forget the base in Hinsberg test and lose marks. I know this because last week, I used my tuition fee to buy my father a new thermos flask, and he said, "Maza, you teach with your heart.
#exams#study
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