Homework Ph Chemistry Worksheet Page 4
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6a) Why are preservatives added to food?
b) Name the unsaturated acid found in some plants.
c) Which type of compounds present in wood smoke may cause cancer?
d) Another widely used preservative is sulphur dioxide. Try to find out examples
of foods containing this preservative.
e) Try to find out some examples of health problems which may arise from
eating foods containing too many E numbers.
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