PDF chapter test TRY NOW
Answer the following questions:
1. Explain why plastic containers are favoured for storing food.
Plastic containers are favoured for storing food because of the following reasons:
(i). The plastics with the food stored in them.
(ii). The plastics are and are strong.
(iii). They are easy to handle and safe.
(i). The plastics with the food stored in them.
(ii). The plastics are and are strong.
(iii). They are easy to handle and safe.
2. Explain the difference between the thermoplastic and thermosetting plastics.
Thermoplastics | Thermosetting plastics |
| on heating | Do not on heating |
| Long chain linear | 3-D structure |
| Can be reshaped and reused | Can not be reshaped |
| in organic solvents | inorganic solvents |
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