Q10 of 15 Page 41

Give examples to show that plastics are non-corrosive in nature.

Plastics are non-corrosive in nature because they do not react with air, water or other substances. They do not get corroded even if they come in contact with strong chemicals. This is because of their non-reactive nature with most materials. For example, the cleansing chemicals that we use at home are stored in plastic bottles, instead of metal containers.


More from this chapter

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8

Categorize the materials of the following products into ‘can be recycled’ and ‘cannot be recycled’.

Telephone instruments, plastic toys, cooker handles, carry bags, ball point pens, plastic bowls, plastic covering on electrical wires, plastic chairs, electrical switches.

 9

Rana wants to buy shirts for summer. Should he buy cotton shirts or shirts made from synthetic material? Advise Rana, giving your reason.

 11

Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.

 12

‘Avoid plastics as far as possible’. Comment on this advice.