A new biodegradable plastic known as Biopol is produced industrially, using starch and glucose from plants to reduce pollution from plastics. The properties are-

1. It is stable in the air even when stored in humid conditions.

2. It is insoluble in water.

3. It has good resistance to acids and bases.

4. It is biocompatible thus suitable for medical applications.

Which of the following statements is/are incorrect?