Question 4
Section A: choose the correct answer. The supplied key prints 2 points per question and 50 minutes. Source header says Qualifying Examinations; key says Taiwan (2).
Choose the incorrect statement about melamine (C3H6N6). The food-contamination statement is historical context from the 2008 paper.
Choose the incorrect statement about melamine (C3H6N6). The food-contamination statement is historical context from the 2008 paper.