CBSE Class 8 Answered
Plastic is known to have a variety of properties?
Burning cotton smells like burning paper,and burning wool smells like burning hair?
Asked by gspublicschool | 26 Jul, 2019, 07:02: PM
Expert Answer
(1)
- Plastics are chemically unreactive. They do not react with air and water. As a result, plastics are resistant to corrosion.
- As they can be easily moulded, they are used to make a large variety of articles having different shapes and sizes.
- Plastics do not conduct heat and electricity. So, they are used as electrical insulators.
(2) Burning cotton smells like burning paper because both are made up of cellulose which is obtained from plants, and burning wool smells like burning hair since both are obtained from animals hence on burning smells similar.
Answered by Ramandeep | 29 Jul, 2019, 11:37: AM
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