Question

2. Which one of the following is not true about plastics?
a. Plastics are of different sizes
b. Plastics are not corrosive.
c. Plastics are found in many shapes.
d. Plastics are not durable​

Answer 1

Option (d) Plastics are not durable is not true about plastics.

Explanation:

1. Non-corrosive in nature

• Plastics do not react with air and water which are essential for corrosion.
• Also, they do not react with any other substances.  
• This property of plastic is not only useful in the storage of food materials but also makes it an environmental hazard and non-bio-degradable in nature.  

2. Durability

• Plastics are made up of a long chain of synthetic molecules.
• Carbon-to-carbon bonds hold these long molecules together and these bonds make plastics so durable.    

3. Availability  

• Since plastic can be easily remolded, they are found in different shapes and sizes.